weekly polyphasic core nap

Day 6 – slowly adapting


Waking up was Ok.  I could concentrate and work quite well until 5:30.  Time at which I got drowsy and sleepy.  However some activity snapped me out of it and I got back to work.

It’s day 4 of the Everyman schedule and I’m doing very well.  Much better than the first day.  Again the 7am nap is still full of REM, just like in a normal sleep morning.

polyphasic sleep diagram of phases

sleep phases on the 13th of March (the mobile didn't synchronize properly for the 5pm nap)

Today I slept 4h and 39mn in total and I’m not feeling sleepy all day.  Instead there are a few moments around 6:30, 12:30 and after 22:00 when I feel quite tired.  But my energy levels are relatively constant the rest of the day.  I may start logging my subjective alertness and awareness on a 1 – 10 scale through the day to try to describe better the adaptation period.  Readers, what do you think?  Would that be useful?Health: I stayed at home today to regain all my strength.  My leg injury has healed very quickly (almost finished in 3 days), so I don’t see the sleep deprivation affecting it so far.  Otherwise I’m snacking a bit more, still doing dinner and lunch and drinking more juice and water.

Adapting?   All in all, it’s too early to say if I have adapted to Everyman.  My body may be just getting more and more tired and I just haven’t noticed.  Most personal accounts describe a 2 – 3 week adaptation phase, so I have to be patient and continue sticking to the schedule.  Perhaps in a week I’ll make a first attempt at überman (6 twenty minute naps and no core sleep).  Below is the evolution in the last week and a half of my core sleep times:

weekly polyphasic core nap

Core sleep during the first week of Everyman Adaptation

As you see there is no clear repeating structure or pattern every night.  This may be a combination of natural variability and adaptation (I’ll be able to tell you more when I crunch the data from the first two weeks of normal sleep).  Have a nice sleep!

Author: alvaro

A scientist, entrepreneur and wannabe polyphasic sleeper


  1. I would definitely measure your subjective level of alertness during the day, a 0-10 scale should work (as it works as a scale for measuring other subjectives variables such as pain).

    Don’t rush to the tough part of the experiment, let your body tell you when is ready!
    Ánimo from Spain 😉

  2. Yeah, definitely, the measuring scale would be extremely useful. The point is not only to be physically able to do the Everyman/Ubermann, but to show you can lead a “normal” life at the same time.

    If possible, I would try to combine it with a more objective estimate of your output levels (lines of code, % of milestones met or any other variable relevant for your work). It helps understand if your brain is actually capable of working at full speed.

    Keep it up! You’re doing great.

  3. These people do online alertness tests for truck drivers and the like:


    Not sure if you have to pay to use them properly though.

  4. Hi Nic, … looking at the site …
    >> For drivers, pilots and others concerned about alertness
    I guess I qualify as heavy machinery user or pilot of the internet 🙂
    I’ve tried their test site (3:45 am right now, I’m 77% accurate). But there seems to be something wrong with their registration code at
    Anyway, I’ll try it later and thanks for the tip.

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