Alternative Sleep Cycles: You Don’t Really Need 6-8 Hours!
Most people only think that there is one way to sleep: Go to sleep at night for 6-8 hours, wake up in the morning, stay awake for 16-18 hours and then repeat. Actually, that is called a monophasic sleep cycle, which is only 1 of 5 major sleep cycles that have been used successfully throughout history. The other 4 are considered polyphasic sleep cycles due to the multiple number of naps they require each day. How is this possible? How is this healthy? Well the most important of every sleep cycle is the Stage 4 REM (Rapid Eye Movement) sleep, which has been shown to provide the benefits of sleep to the brain above all other stages of sleep. When changing over to a polyphasic cycle, the lack of sleep tricks the body into entering REM sleep immediately instead of 45 to 75 minutes into sleep like in the monophasic sleep. This way, you still get the benefits of 8 hours of sleep without wasting all of the time it takes to get to REM cycles, resulting in a much more efficient sleep cycle. Here are polyphasic cycles:
Uberman Cycle:
20 to 30 minute naps every 4 hours, resulting in 6 naps each day. The uberman cycle is highly efficient, and usually results in feeling healthy, feeling refreshed upon waking and extremely vivid dreams. Many uberman-users report increased ability to lucid dream as well. However, the rigid schedule makes it near impossible to miss naps without feeling horribly tired. Blogger Steve Pavlina tried the cycle for 5.5 months and had amazingly positive results.He only reverted to monophasic sleep so that he could be on the same cycle as his wife and children. Read his articles and updates on the cycle here.
Everyman Cycle:
One longer “core” nap that is supplemented with several 20-30 minute naps. The most successful variations that I have read about are either one 3 hour nap and three 20-minute naps or one 1.5 hour nap with 4-5 20 minute naps, all of which have equal amounts of time in between each nap. This cycle is much easier to adjust to than the Uberman and allows for more flexibity in nap times and in skipping naps when necessary. It is also still extremely efficient compared to monophasic with only 3-4 hours of sleep per day. Many bloggers have tried out this cycle and reported no negative effects on their health.
Dymaxion Cycle:
Bucky Fuller invented the cycle based on his belief that we have two energy tanks, the first is easy to replenish whereas the second tank (second wind) is much harder to replenish. So Bucky began sleeping for 30 minutes every 6 hours. That’s 2 hours a day of sleep! He reported feeling, “the most vigorous and alert condition I have ever enjoyed.” Doctors examined him after several years of using the cycle and pronounced him perfectly healthy. In fact, Fuller only stopped the cycle because his business associates were still stuck on monophasic cycles. This is by far the most extreme of the 4 alternate cycles, but also the most efficient.
Biphasic/Siesta Cycle:
Not even worthy of a diagram, the biphasic cycle is basically that of every college student in America. The biphasic cycle consists of sleeping for 4-4.5 hours at night, and then taking a 90 minute nap around noon. So not all that different, still more efficient than monophasic, but not by much.
So which cycle is right for you?
That completely depends on your lifestyle. Keep in mind that if you decide to switch to either the Dymaxion or Uberman cycles, you will be a zombie from day 3 to around day 10 until your body fully adjusts to the cycle. Here are some other tips I have gathered from reading other people’s accounts:
- Eat healthy, avoid fatty foods and the adjustment will be much easier
- Make sure you have a project to work on during all of your new awake hours as it makes the time go by faster
- Also make sure you have two or three weeks of freedom to adjust to the cycle so that you don’t go to work or school completely dead from sleep deprivation
- Hang in there. Each of the cycles will get exponentially easier all of the sudden after the first 2 weeks or so. Just be patient and diligent! Don’t skip naps or change your nap times around or you will basically have to start your adjustment period over.
- Use natural cues for being waking up from naps like sunlight and loud music, while using darkness and silence for sleep (obviously)
If you are seriously considering making the switch over the a polyphasic sleep cycle, a really enjoyable and informative read is Steve Pavlina’s extremely in-depth report of his experience with the Uberman cycle, available here.

Tania said on 02.01.2010
This is awesome! When I sleep for 8 hours, I’m DEAD TIRED… so I KNOW I don’t need the 8 hours. This is definitely blog worthy!
Thanks!
xo
John Smith said on 04.20.2010
This could be a much more helpful and credible article if you provided some references to medical research to back up your claims. I don’t known about other people but I tend to not trust anything I read on the internet unless I can find collaborating evidence in the form of peer-reviewed, journal-published scientific or medical papers that support your claims. Otherwise we have little hope of separating this and the tons of bullshit that people just make up or want to believe, from real actual science.
contempt said on 04.21.2010
John Smith, the wikipedia article that the admin found most of his information on (including the graphs) contains links to references. Hope this helps! http://en.wikipedia.org/wiki/Polyphasic_sleep
StarPorpoise said on 05.06.2010
I feel the same way, I have been looking for information on this and all I can find is doctors saying to not do this because it always leads to sleep deprivation… which is disappointing because I wanted to try it.
sean said on 05.13.2010
The problem is that “experts” will always have negative statements over things that they haven’t tried and don’t understand.
You will find doctors telling you that even something as basic as fasting is dangerous, even though there is plenty of research showing the opposite, as well as thousands of years of practical experience.
It’s like the doctors in the 1800s that refused to believe that washing their hands was good for their patients, and ended up killing many people as a result.
Pootslap said on 07.01.2010
Yea, but on the same token, you can find any doctor to say something is good [Example: Polyphasic Sleep Cycles].
I’d approach this with caution, worth a shot if it actually works with your lifestyle though.
Anonymous said on 05.24.2010
I agree, just not in this situation. Its a sleep schedule, not a radical new way to treat cancer. Try it out; worse comes to worse, you’re a little sleepy…
bobby jacobs said on 05.31.2010
Honestly, I feel that most people are against the idea of polyphasic sleep because it is odd. I used to do the uberman but had to stop because the rest of the world doesn’t really allow it to be a viable lifestyle. It is different and counter to the current norm and is frowned upon and rejected before actual proof is established. I read some research showing that uberman is functional after you completely adjust. The first few days to weeks will feel aweful until your body adjust around sleep deprivation; so yes doctors are right you will suffer sleep deprivation but you will adjust. Think of it like running, you feel exhausted when you first start and then you grow into it. There is also research that showes the uberman sleep cycle causes minor drops in mental acuity of about 11 pct but because it is more consistant the the everyman the drop in acuity is significantly lower. I saw an article that says babies practically do the uberman…that’s why they seem to always bug you when you’re sleeping. Google some of this..it should come up!
Michael D said on 06.01.2010
It doesn’t look like there are any efficient sleeping cycles here for people who need to stay awake for a certain period of the day. I need to get up to get ready for school at 7:00 AM at the latest, and don’t get home until 5:00 or 5:30. There is no way I can sleep at school. This seems like it would make all the polyphasic cycles impossible. Is there anyone who has successfully used a polyphasic cycle in conjunction with work or school?
Jordan said on 06.01.2010
Well is there truly no possible way for you to take a 20-30 minute break anytime between 7am and 5pm? That’s a 10 hour span so with the most efficient sleep cycle (Dymaxion), you would only need to take one 30-minute nap during that period. Your schedule could be naps at 6am, 12pm, 6pm and 12am. Other than that, there is no cycle that would work with your schedule. The whole point of polyphasic sleep is that you need to charge your batteries MORE often instead of all at once. You’re asking to go for at least 10 hours without re-charging and your body just can’t do that.
bobby jacobs said on 06.02.2010
this is exactly why i had to quit. maybe you could nap during lunch. a recording of white noise with an alarm at the end of 20 minutes really helps and a face mask to block out light.
Alex said on 09.13.2010
I’m attempting the everyman sleep cycle and am on day 4. I’m still going to high school (sophomore) and so far i’m not doing too bad. I just slowly cut back on my sleep and tonight will be my first night of only 3 hrs of sleep. Last night i had 4. So if all goes well and my mom doesn’t force me to sleep like a normal person I’ll keep this up for at least a month, maybe more depending on how it fits and how it makes me feel.
Michael said on 09.18.2010
Alex, how are you able to maintain the everyman cycle while in school? I considered doing the same thing but I would have had to take a nap during lunch, which proved to be difficult.
Smert guy said on 06.03.2010
Surely you meant “corroborating” evidence.
Anonymous said on 07.22.2010
Or you could… y’know… try it out. Figure things out for your own self for a change. You know, a little immersible learning experience. All that jazz. Uh-huh.
Jordan said on 07.22.2010
That is what this website is about :)
J said on 08.13.2010
Why don’t you look it up for yourself? Are you really telling me if he had cited some medial sources you would automatically believe it? because that is just as dumb as believing something with out sources. I could write article after article and site BS sources all day long. Stop being lazy and do the research yourself.
I’m not normally this much of a troll but that kind of mentality just ticks me off.
Anyways this is supposed to work well. I have researched it and lots of people have had great success and did it for years. At the same time this is not something all people can do. Not everyone’s body will adjust to going straight to REM sleep. If you are the type of person that takes a 15 minute nap and feel refreshed. It will probably work well and adjustment time will be short. If not it could take even longer than 10 days and you might be a complete zombie the whole time. Every bodies body is different.
My personal opinion about doctor’s advice, unless you are going and speaking with an actual doctor in a doctor’s office don’t believe what you read online. Anyone can say they are a doctor. It all goes back to doing your own research. My own doctor gave me the go ahead on this and said to be extremely careful while driving or doing anything where lack of attention could lead to death.
johnny the nigger said on 04.20.2010
this is cool.
Jase said on 04.20.2010
Read some of Steve Pavlina’s stuff. Unless I’m missing it elsewhere, he did the Ubermnan cycle for 5-1/2 months, not over a year: http://www.stevepavlina.com/blog/2007/03/polyphasic-sleep-one-year-later/
Jordan said on 04.21.2010
Thank you, you’re correct! I read through all of his articles about sleep before writing this so I don’t know how I made that mistake
chelsea said on 08.10.2010
The article does, in fact say that ”Steve Pavlina tried the cycle for 5.5 months and had amazingly positive results.” “Doctors examined him after several years of using the cycle and pronounced him perfectly healthy.” was refering to Bucky Fuller. Reading things is important…
Jimvesting said on 04.20.2010
Great article! I’m studying up for finals and this will definitely be interesting to try out :)
bobby jacobs said on 06.02.2010
i recommend not using this for finals studying if you haven’t adjusted yet. non rem sleep is very important for memory. like book smarts stuff not muscle memory.
Eric said on 05.04.2010
I did Everyman for 6 weeks. Very positive results. I loved it. But I missed one nap and I crashed. The one problem with the plan.
Jordan said on 05.04.2010
One nap shifted your entire cycle back to normal? Interesting. Everyman worked really well for me when my schedule didn’t allow for the Uberman cycle (which I see as the ultimate cycle)
gia said on 05.04.2010
I used the everyman cycle when I had a newborn, worked like a charm! basically since your baby sleeps so much, you just need to adjust your nap time to theirs and you will feel just fine. It made those nght-time breastfeeds easy! I knew plenty of other new parents that couldn’t adjust their sleep cycles who were zombies for the first 6 months.
j said on 05.05.2010
Wow, I’d love to do this, but I can’t even keep a NORMAL sleep schedule straight. And everyone I know is on DIFFERENT sleep schedules, so I feel like it would interfere with my social life if I couldn’t just stay awake whenever I wanted and go to sleep early if I needed to.
Elaine Benes said on 05.12.2010
Kramer tried the Uberman Cylcle; look where it got him…
Casey said on 05.12.2010
Amphetamines ftw
C said on 06.16.2010
haha for real.
Nate said on 06.24.2010
Works like a charm time released. never fully leaves your system and you always have energy from a boost in dopamine to the brain. good stuff. but if you cant take a month off without taking it I suggest you seek help. ie. crack heads…
itemforty said on 05.13.2010
You need some amount of non-REM sleep to retain memories.
theShiznitz said on 05.13.2010
So what are you supposed to do late at night/early in the morning during weekdays? All the stores are closed, its too dark out, and all your friends are asleep…
Jordan said on 05.14.2010
I always have some work to catch up on or some project to finish so I always have something to do at any hour. Plus the internet is available 24/7 and it has SO much to offer. So much learning material and fodder for any kind of ambition you have.
Otherwise, you could always start a website.. ;)
SipSop said on 05.20.2010
I have a question for those of you who have tried these types of cycles. Is it something that takes you a while to get comfortable? Or do you feel better right when it starts? I find that I am so exhausted when I sleep a full 8 hours. My mind is hazy for about 4 hours after I wake up, but on about 6 I feel much better so I think something like this might work for me, but if the transition is hell I may not be able to do it as I need to be able to function during this transition phase.
Jordan said on 05.20.2010
From everything that I have read, the transition period is always extremely difficult but the duration varies from person to person. However once you can successfully take your naps on time, it’s very comfortable (which usually takes about a week). If you did switch over to a polyphasic cycle, you would reportedly feel very alert and not at all hazy during waking periods. But if you don’t have 2 to 4 days where you can be a complete zombie, the transition would be near impossible. Hope that helps!
SipSop said on 05.21.2010
Great info! Thank you much.
RS said on 05.21.2010
I’d like to point out the major flaw I see with all of these polyphasic sleep cycles. Namely, none of them allow a time window for a ‘normal’ 9-5 job… Granted, not everyone works 9-5, but most people work more than, say, 6 hrs at a time, at least a couple times a week. None of these sleep schedules seem to allow for such. This is a bummer, as even though I don’t currently have a job requiring an 8hr shift, I will be returning to college, come fall, and when I’m not in class, I’ll be working, for the most part. A more efficient sleep schedule would be extremely useful, but I can’t see being able to take a nap every 3-6 hrs, which these polyphasic schedules all seem to require. :( Sadness.
Jordan said on 05.22.2010
You are 100% correct. This is one of the reasons I will NEVER work a 9-5 job: the lack of freedom! Why would you want to live a life where your activities are restricted? We only get one life to live, so I’m going to choose a lifestyle where I can do what I want, when I want. It’s awesome that I’ve found a way to do this and still make good money, but I would still do it even if I was guaranteed poverty. I guess it’s all about what you want in life. I want to follow my bliss. The freedom to follow my bliss. What do you want?
RS said on 05.22.2010
Given the relative scarcity of jobs that DON’T require a structured 8-hr shift, I’m just saying that these schedules aren’t as practical as you claim them to be, for everyone. Sure, there are plenty of jobs that allow flexible scheduling, or work-on-your-own-time, whatever. But, by comparison, these are much rarer than jobs requiring a set schedule of X-hrs from time-Y to time-Z. And, since money is, let’s be honest, a pretty important commodity, I don’t think very many people (you excepted, apparently?) are going to turn aside a steady paycheck in favor of a more lenient schedule so they can maximize their unconscious efficiency.
Freedom is, indeed, very nice. A most commendable goal, even. However, there’s a saying that goes something like “Freedom isn’t free.” And that’s damn right. Freedom costs money, and loads of it.
Louie said on 05.26.2010
I have a few comments about this article. Firstly, it’s a good article. Secondly, some people are saying that these sleep patterns would never work with a normal schedule. I beg to differ. A biphasic pattern uses the same basic block of time that you normally sleep in, but broken into two chunks. Basically, you go to bed a few hours earlier, but wake up ninety minutes later, and stay up until the early morning (12-3 am), then taking another chunk of sleep before the actual beginning of the day. It works with most people’s work schedules and seems perfectly fine to me. I’ll be going on a polyphasic sleep schedule pretty soon, weaning myself off the extra sleep (it doesn’t make sense to me to go cold turkey). Good luck to everyone here.
Damon said on 06.22.2010
But you can do this with an 8-5 job, so long as you sleep for half of your lunch break. I’ve always wanted to try this, but could never find a breakdown on how to do it outside the oft-heard ten naps a day Edison supposedly took.
M said on 08.13.2010
Last I checked here in the states you get at least a half hour lunch break by law. I work a 9 to 5 and I have just started the dymaxion cycle, day 3 and feeling fine. I simply use half my hour lunch break to nap. I have a co-worker who is about to start and plans on doing the same thing. This is possible if you are willing to adjust your schedule. also it doesn’t have to be exactly 6 hours.
billiam said on 05.23.2010
Firstly great article, have always been curious about this.
Now, I have been on a bit of a different sleep pattern, where I fall asleep around 330-4am and wake up at 8-830am (about 3.5-4.5hrs), I then take a nap from 7-730pm until 830-9pm (about 1-2hrs). Generally I end up sleep about 5.5 hours a day.
I have been doing this for many years and I cant over exaggerate the improvement in my level of productivity I feel. Before I started this sleep cycle I used to be dead tired after even 8 or 9 hours of sleep a night.
Also I have not gotten a cold or flu or sick at all since I started this new cycle even though I have been around sick people and shake hands throughout the day.
Before this current sleep cycle I was on one where I would sleep 1.5-2 hrs every 6-7hrs but like another poster said, it definitely affected my memory negatively. Unlike my new sleep pattern, I think for me personally I need that bigger 4 hour sleep. Plus I exercise alot so need the longer sleep for my body to recuperate.
Sonja said on 07.19.2010
Oh my God. I am 15, and I have EXACTLY the same sleeping pattern. For a long time I was really scared that I was lacking sleep and that I have insomnia or something, but when I think about it, I’m usually not tired at all. Nice to know that someone else has the same pattern, I thought I was just weird or hormones or something..
Jordan said on 07.22.2010
Sonja, you are a badass. Most people fail when TRYING to use these cycles and you did it without a sweat haha.
Anonymous said on 05.26.2010
If only we all had lives that allowed us to take 20-30 minute naps every 4 hours. I don’t think my bosses would encourage two naps in the work day…
TryerSleep said on 05.27.2010
Hi all,
Back in 2005, I tried to get into a sleep pattern half way between the Uberman and Dymaxion (I went for 5 x 35 min naps).
The first two weeks were really hard, but as I was on vacation, it didn’t affect my professional life.
I managed to keep it up for 3 months, but I had to stop, as my short term memory went completely down the drain.
To the point where I could read a 12 paragraph article, and 30 minutes later, could only recall about 10% of what I read.
So, unfortunately for me, it didn’t work out, although I know that for those who can adapt their bio-clocks to these cycles, there’s a lot of gain to be had.
Right now I’m on a 4:30 per night cycle, which I supplement with an hour nap in the afternoon on Saturdays and Sundays. Been on this cycle now for about 18 months, and seems to be working quite well.
On a side note, while I was in University, a group of us (6 guys) decided to see how long we could last without sleep.
We all agreed beforehand to keep each other awake for as long as we possibly could.
We started on a Thursday morning, all of us waking up at 8:00. On Friday, we were all OK, and went to class as per usual.
Friday night was quite tough, because we decided to go have a couple of drinks (Not a good idea).
By Saturday afternoon, two of us were hallucinating to the point that they were convinced they were talking to other people (Parents, teachers) while talking to us.
They were completely coherent, and answered the questions as if they were actually speaking to those people. (We even had one guy discuss his last paper with his “teacher” for an hour).
At around 21:00 on Saturday, most of us were practically tripping. It was increasingly hard to distinguish between reality and thoughts/dreams.
We decided to load up on coffee and caffeine pills, which made things a bit more bearable, although by about 5:00 on Sunday, we decided to end the experiment. (From what we remember, we basically all fell asleep instantly at roughly the same time)
I slept through to about 21:00 Sunday evening, woke up, feeling really rough, as if I had a huge hangover, ate something, and went back to sleep, waking up at 7:00 on Monday.
I only managed to fully recover by Thursday.
It was an interesting experiment, although one which we all agreed we would not like to repeat in the future.
Great informative article, btw!! Thanks…
Jordan said on 05.27.2010
Hmm well maybe extreme polyphasic sleep isn’t for everyone. But that story is crazy! I’ve definitely experienced some hallucination but only while trying to fall asleep, never while awake. Was your friend really talking to an invisible person for a full hour? I don’t think I would have let him live that one down haha. Such a college-y thing to do
Julia said on 07.31.2010
I just watched a Nova about sleep deprivation. It explained why people hallucinate during extreme sleep deprivation (though in their experiment it had taken about 4 days for the subject to begin hallucinating) and why memory function suffers so much.
One currently popular theory about the purpose of dreams is that they take short-term memories from the day and integrate them with the rest of a person’s memories. This makes the memories both less accurate and more useful. Hence, when you have to “sleep on” a decision, you’re actually allowing the decision to be viewed in the context of your previous knowledge. This would probably account for your poor memory function. Maybe your short-term memory was getting overloaded?
As for the hallucinations, the show claimed that, because dreaming serves such an important function, when the brain can’t dream while asleep for an extended period of time, a person will begin to dream while awake. It’s just your brain’s way of trying to get everything in order even though you’re not sleeping.
Derek said on 05.28.2010
My friends always referred to me as the energizer bunny and curious how I could do work (40+hrs), school (20+hrs),freelance (20+hrs), marathons, and still go out drinking all in the same week on 3/4 hours sleep a night. The Monophasic cycle describes me best. I have been doing this for 10 years but never knew it had a name, thanks for the article. I usually only need to crash once every 2 weeks for about 10/12 hrs.
I am a designer, project manager, event coordinator and a lack of sleep has never effected my creativity or projects… so far
Jordan said on 05.28.2010
Impressive. I find it really interesting that you crash once every 2 weeks, I’ve never heard of anyone on this kind of cycle before. Either way, Mr. Energizer Bunny, I dare you to go for the Dymaxion cycle. I’m on it right now and it’s AWESOME. If you can get through the transition week, I swear you’ll love it
sir jorge said on 05.30.2010
i’m not sure i’m brave enough to try the methodology
Saastian said on 05.31.2010
Hi, it’s very interesting indeed and I am tempted to try it. I have 1 question : Does it fit with a sporty way of life ? (I kind of run 1h 3-4 times a week + some hoop and exercise)
Jordan said on 06.01.2010
I do upper-body and leg workouts at least 5 days per week and it’s been working out fine so far. You will need to slow down for the transition period but after that you’ll be able to run as much as you want
Anonymous said on 06.01.2010
this is fucking stupid… get a job and your done…
Jordan said on 06.01.2010
I’m sorry I don’t quite understand your comment. I assume you mean you’re* done, but even more confusing than your grammar is the relevance of your statement. Can you explain further?
Sherbet said on 06.05.2010
I need more scientific evidence via journals and medical research to believe any of this. The wikipedia article is not a credible source and all of the references lead mainly to popular articles, few of which are scholarly journals. Before you can claim that any of these have negative effects on health provide literature to back it up.
B said on 06.07.2010
I learned in a psych class/ read some studies that showed that we encode memories in the 2nd rem cycle of sleep, from 3-6 hours. this is where we retrace the associations we’ve made throughout the day, it’s where we we solidify our memories. how does this fit in to these cycles that you have posted?
Jordan said on 06.07.2010
Every REM cycle contributes to memory consolidation, no one more than another. The only thing that differs from early to later REM cycles is that the later ones may last an extra 5 minutes or so. Also REM cycles only last round 30 minutes at the most so I think you might have something mixed up?
Regardless of the science, I haven’t experienced any problems with memory since starting the Uberman cycle.
B said on 06.30.2010
I pulled this from wikipedia because it summarizes all the studies I read about in one
“Scientists have shown numerous ways in which sleep is related to memory. In a study conducted by Turner, Drummond, Salamat, and Brown,[40] working memory was shown to be affected by sleep deprivation. Working memory is important because it keeps information active for further processing and supports higher-level cognitive functions such as decision making, reasoning, and episodic memory. The study allowed 18 women and 22 men to sleep only 26 minutes per night over a four-day period. Subjects were given initial cognitive testswhile well-rested, and then were tested again twice a day during the four days of sleep deprivation. On the final test, the average working memory span of the sleep-deprived group had dropped by 38% in comparison to the control group.
Memory seems to be affected differently by certain stages of sleep such as REM and slow-wave sleep (SWS). In one study cited in Born, Rasch, and Gais,[41] multiple groups of human subjects were used: wake control groups and sleep test groups. Sleep and wake groups were taught a task and were then tested on it, both on early and late nights, with the order of nights balanced across participants. When the subjects’ brains were scanned during sleep, hypnograms revealed that SWS was the dominant sleep stage during the early night, representing around 23% on average for sleep stage activity. The early-night test group performed 16% better on the declarative memory test than the control group. During late-night sleep, REM became the most active sleep stage at about 24%, and the late-night test group performed 25% better on the procedural memory test than the control group. This indicates that procedural memory benefits from late, REM-rich sleep, whereas declarative memory benefits from early, SWS-rich sleep.
A study conducted by Datta[42] indirectly supports these results. The subjects chosen were 22 male rats. A box was constructed wherein a single rat could move freely from one end to the other. The bottom of the box was made of a steel grate. A light would shine in the box accompanied by a sound. After a five-second delay, an electrical shock would be applied. Once the shock commenced, the rat could move to the other end of the box, ending the shock immediately. The rat could also use the five-second delay to move to the other end of the box and avoid the shock entirely. The length of the shock never exceeded five seconds. This was repeated 30 times for half the rats. The other half, the control group, was placed in the same trial, but the rats were shocked regardless of their reaction. After each of the training sessions, the rat would be placed in a recording cage for six hours of polygraphic recordings. This process was repeated for three consecutive days. This study found that during the posttrial sleep recording session, rats spent 25.47% more time in REM sleep after learning trials than after control trials. These trials support the results of the Born et al. study, indicating an obvious correlation between REM sleep and procedural knowledge.
An observation of the Datta study is that the learning group spent 180% more time in SWS than did the control group during the post-trial sleep-recording session. This phenomenon is supported by a study performed by Kudrimoti, Barnes, and McNaughton.[43] This study shows that after spatial exploration activity, patterns of hippocampal place cells are reactivated during SWS following the experiment. In a study by Kudrimoti et al., seven rats were run through a linear track using rewards on either end. The rats would then be placed in the track for 30 minutes to allow them to adjust (PRE), then they ran the track with reward-based training for 30 minutes (RUN), and then they were allowed to rest for 30 minutes. During each of these three periods, EEG data were collected for information on the rats’ sleep stages. Kudrimoti et al. computed the mean firing rates of hippocampal place cells during prebehavior SWS (PRE) and three ten-minute intervals in postbehavior SWS (POST) by averaging across 22 track-running sessions from seven rats. The results showed that ten minutes after the trial RUN session, there was a 12% increase in the mean firing rate of hippocampal place cells from the PRE level; however, after 20 minutes, the mean firing rate returned rapidly toward the PRE level. The elevated firing of hippocampal place cells during SWS after spatial exploration could explain why there were elevated levels of SWS sleep in Datta’s study, as it also dealt with a form of spatial exploration.” citation: http://en.wikipedia.org/wiki/Sleep#Hours_by_age
here are the individual studies:
^ Turner, T.H., Drummond, S.P.A., Salamat, J.S., & Brown, G.G. (2007). Effects of 42 hr sleep deprivation on component processes of verbal working memory [Electronic version].Neuropsychology, 21, 787-795.
^ Born, J., Rasch, J., & Gais, S. (2006). Sleep to remember [Electronic version]. Neuroscientist, 12, 410.
^ Datta, S. (2000). Avoidance task training potentiates phasic pontine-wave density in the rat: A mechanism for sleep-dependent plasticity [Electronic version]. The Journal of Neuroscience, 20, 8607-8613.
^ Kudrimoti, H.S., Barnes, C.A., & McNaughton, B.L. (1999). Reactivation of hippocampal cell assemblies: Effects of behavioral state, experience, and EEG dynamics [Electronic version]. The Journal of Neuroscience, 19, 4090-4101.
enjoy
Jo said on 06.14.2010
I think I read somewhere, a while ago, that when you transition to these cycles, your mind trains itself to fall asleep as soon as you decide to sleep and go to REM faster. Look into it.
Jordan said on 06.15.2010
Yup that’s the whole reason why these cycles work
Trevor said on 06.17.2010
I really want to try the Everyman sleep cycle.
I work at home and it should be easy to fit in, plus I can go to bed at the same time as my girlfriend, I’ll just wake up and get out of bed much earlier.
Hell its worth a shot. Being able to attain 3-4 more hours of wakefulness is something that intrigues me.
My girlfriend tends to sleep 12 hours on days she’s not working, I’m worried about how much she sleeps as well – she’s sleeping half her life away.
Jordan said on 06.17.2010
Sounds like a plan, man. If you have the freedom to try a polyphasic sleep cycle, then by all means go for it. So many people comment saying that they wish they could try it but their schedules won’t allow it.
And I hear you on the sleeping life away bit. Sleep just isn’t productive or memorable enough for me to want to do it for even one quarter of my day!
goodlookingabs said on 06.19.2010
Hummm that is a interesting theroy. I will have to check this out and I will will you know the finding.
Geoff said on 06.25.2010
I prefer to sleep. I’m wasting my waking hours on internet sites like these anyway; the extra hours would do no good.
Rip VVan Winkle said on 06.25.2010
Uh…I tried the first one.
I got fired.
Thanks.
Julia said on 07.31.2010
From the article: “Also make sure you have two or three weeks of freedom to adjust to the cycle so that you don’t go to work or school completely dead from sleep deprivation”
Sorry about your job and all, but…just sayin’.
Andrew said on 06.25.2010
This is quite intriguing to me, as I’ve always hated wasting my best hours asleep, simply to conform to society’s demands. I’m markedly nocturnal by preference, and always have been, and am generally extremely introverted, so I enjoy my silent nights in dark, cold rooms, being left to my own devices.
Thing is, I sleep horribly because I’m obligated to live by the typical daytime schedule, but I strive to maximize my night hours for personal pleasure. The end result is that I sleep 4 hours a night—often for three to four days at a time—before crashing horribly and spending 10-14 hours asleep, only to wake up and start the “cycle” all over again. Worse, my work hours fluctuate according to my school schedule, so I wake up several hours later every other day than the one before it, completely disrupting my pattern.
In essence, I sleep randomly, and not nearly enough, and I’ve been doing this for as long as I can remember. I’m 29 now, and some days I feel like this is going to kill me. I’m moving to Colorado and starting over with a new job, a new college and a new home, in three weeks. I hope I can find a way to adjust fully to one of these schedules, and fit it in with my developing lifestyle. The notion of living functionally on 4 hours of sleep a day is incredibly appealing to me; I just need to find one compatible with my classes and job, and I don’t even know what or when those will be, just yet.
Carissa Whisenhunt said on 06.28.2010
Hey!
I just stumbled this article and thought it was very interesting! I would certainly love to try one of these cycles and maybe revamp my sleeping habits! I posted a link to this article on my blog, Continuing College Frugality. Thanks for the info.!
Matt said on 07.01.2010
This could be dangerous for people in certain jobs, or anyone who drives a car. I watched a documentary where people volunteered to survive on 3 hours sleep a day [ie; they wanted to, and believed they could live normally on 3 hrs sleep.] All the participants after a few days, were having micro sleeps & were totally unaware of it. They got them driving & had a monitor on their eyes, which is when they discovered their bodies were going into unconsciousness for fractions of seconds at a time. By the way, sleep deprived drivers were worse than drunk drivers for reaction times. IF YOURE GOING TO TRY THIS, DON’T DRIVE! Better to get a few more hours sleep than hit the big sleep 50 years too early [never mind taking others with you]
Jordan said on 07.03.2010
Except those people were not training their bodies to enter REM sleep early, they were just sleeping for 3 hours. Period. Of course that doesn’t work! And hey, I’m still alive aren’t I? I’ve been driving quite often lately :)
Genevieyve said on 07.07.2010
This is an irresponsible article. You are not a scientist nor a doctor and should not be giving out sleep advice to anyone, even in comment form. If your advice causes someone to lose a job or health, you’re liable. Look into the law on this kind of thing.
Jordan said on 07.12.2010
I’m not a scientist, nor do I claim to be. This is an informative article, not a scientific study! But please feel free to sue me haha. BRING IT!!! After all, how do you know Jordan is my real name? :)
Julia said on 07.31.2010
This is an informative article. The author isn’t compelling people to begin polyphasic sleep, just telling them how to. He isn’t liable at all. Try opening a law book :)
B said on 07.02.2010
I really appreciate this article. Whether its credible or not it has given me much information about a topic I’ve been very interested in since I was 15 (10 years ago). I hate to sleep and have the most difficult time falling sleep, naturally an anxious person. For over a year I would sleep between 4 – 6 hours a day and it was great. I felt great and accomplished many things. I always thought to myself, life would be better if there were more hours in the day, people think I’m crazy. Well I’m definitely not normal if I’m on this website and considering some of these sleep cycles. I’m finishing an accounting degree right now so I don’t have the time and can’t take the risk of trying out one of these cycles. However, I believe I will try the Uberman when I have the time.
“I’ll have the number 2… yes the Uberman, I’ll need some extra napkins, some REM sauce and can I get a water with that? Thanks.”
I’m obviously delirious from the lack of sleep as it already is. Those early World Cup games were perfect.
B said on 07.02.2010
Oh and I want to thank Stumble for directing my attention to this site.
ChelseaAsksWhy said on 07.07.2010
Being someone who struggles with insomnia, therefore having immense trouble falling asleep, I wonder if this would work for me. It would be a wonderful solution to college in general, but I’m not sure I could do it. Any tips?
Jordan said on 07.12.2010
Just be consistent as possible! Also try going from the Everyman to the Uberman; the transition is much easier
ChelseaAsksWhy said on 07.12.2010
Thanks Jordan! I’ll try it for sure!
tim said on 07.08.2010
i have been forced to work up to 130 hrs a week and i have practiced the nap theory and it has worked fine. i feel rested and alert!!!
Jordan said on 07.12.2010
You sound very alert, Tim haha. Thanks for the support
S said on 07.21.2010
What about the effect this has on your body’s natural circadian rhythm? There’s a whole host of long term health issues that are thought to come from disrupting one’s circadian rhythm (like the high rates of cancer in night time shift workers).
Jordan said on 07.22.2010
Interesting point, Sasha. I haven’t read any articles about polyphasic sleep that mentioned health effects from disrupting the circadian rhythm but I will look into it. So many people are interested in trying these cycles that I just have to investigate every plausible claim against them
Barbara said on 07.24.2010
Zeit sparen ist krankhaft. Schlaf ist gesund und etwas vom schönsten, was es gibt. Eine Krankheit unserer Zeit, das immer mehr einzugrenzen.
Rachel xoxo said on 07.27.2010
Jordan you are so awesome for posting an article like this! It doesn’t work with my schedule right now, but I am definitely going to try it sometime in the future. One question I have is if you start this and then have to stop, will it be hard to start again?
Jordan said on 07.27.2010
If you completely revert to monophasic sleep, going back to polyphasic sleep will be just as difficult. Butttt you will have the experience and know-how of doing it the first time to help you along!
Rachel xoxo said on 07.27.2010
Okay thank you very much. I just discovered your site tonight and am seriously obsessed. haha
Julia said on 07.31.2010
About a year ago, I tried out an alternative monophasic sleep schedule in which I slept for 6 hours, and then stayed awake for 15 hours, resulting in an 8-day week. The way I had my schedule adjusted, I was awake for most of the day during the week and all of the night during the weekend. It was definitely hard to adjust to at first, but an interesting experiment.
The biggest problem I had was that there was NOTHING to do between the hours of 3 and 8 AM. When I was dead tired during the adjustment period, it was very hard to stay awake when I was pretty much confined to my apartment at that time.
Carl Wells said on 08.02.2010
Wow! Interesting reading – v interested in trying as I feel sleepy all the time and also feel there is ever enough time in the day.
One hard thing is with the Uberman is getting the extra nap in during the day (I work 8.30-6) also lunch is limited to 1/2 hour for me so it is looking like the Everyman with its 4 sleep stages and ability to miss the odd nap.
The ultimate would be the Dymaxion cycle but will have to wait till I have a job with longer lunch break to guarantee the 30mins naps I need.
So will have to wait till leave later in year to try – will have to see how your Dymaxion cycle goes!
Margo said on 08.03.2010
That you for these articles, I’m going to try the everyman method. That’s almost how I sleep anyway so if I can tighten that up considerably I might transition to the uberman method. When would you recommend eating? Upon awakening for more energy? That seems reasonable to me…I just have to find a way around this insomnia. Sleeping pills don’t work so I have to figure out how to function through it
Abel said on 08.12.2010
Hey Admin can you help me out to choose a cycle for me if i told you my schedule?
Jeff said on 08.17.2010
Love your website; so many interesting things. My friends and i are very much interested in trying out one of these alternative sleep cycles because we would love having the extra time every day and we just graduated college and have the time it takes to adjust.
I read the comment by Sasha and i would like to be aware of any adverse effects these sleep cycles may have, so if you find anything out let me know. Maybe even post another article about it.
I will set up so i will receive follow up comments via e-mail.
Looking forward to updates on your alternative sleep cycle,
Jeff
Fabs said on 08.21.2010
Dont really feel comfortable in trying, I think need to study bit more about its affects on ones daily life and performance.
Anyways, great post though. Thanks Jordan for introducing me to another way of living life.
Anonymous said on 08.23.2010
if all of the polyphasic sleep cycles were more effective/efficient, then why is it that the founders of the cycles reverted back to the monophasic sleep cycles instead of convincing others to try a polyphasic sleep cycle?
Jess Cox said on 08.26.2010
Hi,
Who ever created this web page has STOLEN MY PHOTO and has used it WITHOUT MY PERMISSION. Please remove this photo immediately and contact me regarding my rights to compensation. If I do not hear from you in a timely manner you will be receiving an invitation to court. Thank you
-Jess Cox
Anonymous said on 08.28.2010
I’m glad you removed my friend’s photo from your page. Please stop stealing other people’s photos. Try http://www.istockphoto.com/ for some legal alternatives.
Jason said on 08.29.2010
If you feel like you can’t “jump” into the sleeping schedule, I suggest spanning it out over a couple of months. Split the 8 into 2 4-hours, then those into 4 2-hours, then split it down towards the schedule that you want. I used to work 2 full time jobs, 16 hour days, the problem was that I didn’t get a full 8 hours, it had to be split. Eventually the body got used to this and it was reduced to 2 3-hours. I am sure if I continued on trying to split the sleeping down, i could of gotten down to uberman with very little problems.
Varun said on 09.04.2010
Nice post, thinking about changing a bit of my 8 hours.