[Aximilation]

Polyphasic sleep != sleep deprivation unless it is not done correctly. Yes, not sleeping well (deprivation) can cause those things, but it does not mean that polyphasic sleep causes them. if you have adapted and are on a consistent schedule, you should be more rested than before.

[chaostheory]

" not sleeping well (deprivation) can cause those things, but it does not mean that polyphasic sleep causes them. "

Until there's research conducted on the long term effects of polyphasic sleep, who's to say it doesn't cause those things?