An Experiment with Polyphasic Sleep by Emi Gal

A great talk on a Polyphasic Sleep experiment by Emi Gal, the CEO of the interactive advertising platform Brainient.

“The main takeaway was that it is fun, but not sustainable. None of the polyphasic sleepers have succeeded in doing it more than six months. You always act tired…”

If you’ve experimented with polyphasic sleep, we’re interested in your stories.

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5 Responses to An Experiment with Polyphasic Sleep by Emi Gal

  1. Christopher says:

    I did the everyman sleep schedule for three months with a friend. Here’s the link to the Blog we had :

    Don’t hesitate to ask me for more information.

  2. Matthew Squire says:

    I have tried this. However it led to two semesters of failed classes. I was trying to have a social life, study two majors, and still do all the intellectual stuff. It doesn’t work and it isn’t worth it. I was suckered in by the stories of famous historical figures that barely slept. They had productivity that stretched the limits of all human expectation! However, when you examine these claims you realize they had incredible reasons to sleep like this. Most of them are military commanders that couldn’t sleep so that they could take care of their men and push the campaign.

    What I learned is that this is useful if your in an emergency situation and you don’t mind losing about 20 points off your IQ. There were days where all I could do was stare at walls. I think that the people that do this tend to reach states of euphoria, especially in the morning when the sun rises, I have to admit that was a good feeling. They then think that they are getting lots of work done, but they are simply producing lots of crappy work. You can’t do mindless physical work, because you still get tired, and you don’t have the benefit of having your body lock up and be motionless for 8 hours while it’s repairing itself.

    The best time to try polyphasic sleep to cut sleep time is the worst time you want to have your quality of work suffer. Like I said there are only a few situations where it makes sense, like if your trying to paddle across the Atlantic in a kayak alone or something. There are benefits to regular naps however. Technically it is still polyphasic if you sleep 8 hours a night and take a nap for an hour in the afternoon.

  3. Ulrich says:

    I echo Matthew. Sleep is a force multiplier, I’m sure you read it somewhere as well.

  4. Seriously? I know several high-performing people currently who are doing everyman 3, and they totally aren’t sleep-deprived. Uberman is way rougher and might be impossible for many people, but everyman appears to work for plenty.

    Don’t believe the anti-hype. Just by trying uberman two summers ago, I gained the invaluable ability to just lay down and have a solid 20 minute REM nap and then get right back up. I’m currently in the process of adapting to everyman 3, and I’m already about as functional on ~30h/week polyphasically as I used to be when undersleeping (~49h/week monophasically). A month from now, I expect to feel fully-rested, almost all the time, on only 4.3h of sleep per day (those same 30/week).

    Check out for more info.

  5. Eric Watson says:

    I haven’t yet reached 6 months, but I’ve been on Everyman 3 for more than 2 months and I’m feeling great! More energy and way more time. The hardest impact for me is social and I also know that gets a lot of people out of polyphasic sleep.

    If you’re interested check out my sleep logs at

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