I’m impressed you were able to only do 10 minute naps instead of the regular 20 min ones. I’m almost a month into polyphasic sleep (still not adjusted – have had some setbacks) and I’ve experimented with all different lengths of naps. 20 minute naps seem to be perfect for me: any longer and I’m groggy, and any less and I feel like I’ve been rudely interrupted.

I’ve been keeping a log of my sleep (though not as detailed as yours) at: handyandypandy.com/polyphasic

I would start with at least 20 minute naps. Later, I discovered them to be too long, but in the beginning, I doubt you would be able to make it through the first week on 10 minute naps, but maybe.

As for 18, I don’t really have a recommendation. I believe your brain is still developing on some level at this age, which probably would mean if you do Polyphasic sleep you will most likely train your brain for life. Like I have mentioned before, I still fall asleep super fast. However, you also should know your body will be in a state of wakefulness nearly all the time. Thus chemicals build up in your system. I notice an increase in testosterone and muscle development seemed to increase during this time. As for what the effects these would have on someone doing this for years. idk. Although there have been some very notable historical people reportedly following a Polyphasic Sleep cycle, there just isn’t that much data out there.

Just finnished reading about all 89 days of polyphasic sleep.
I am so into trying this but I don’t know how to start. In one of your first days you mention that you had a dream which means that you are sleeping REM in your 20 min. nap. But i haven’t ever slept those power-naps since i thought it was a sign of weakness

So i have been trying to sleep 6 hours of core sleep and 2×20 min. power-naps. But it takes like 45-65 min. so fall asleep everytime…

1.
I am just a bit concerned that if i do your JD-schedule i am gonna walk around like a zombie for weeks and weeks.. do you think I will adapt quicker if i really need the sleep than if I am just sleeping 20 min, to get my brain used to it?

2.
And do you think i should do 10 or 20 min naps to start out with?

thanks in advance

Lasse (by the way i am just 18 years of age, do you think that will affect me? i ussually sleep 6 hours a day)