Pages tagged polyphasic:

How To Hack Your Brain, Part 1: Sleep | Dustin Curtis
http://dustincurtis.com/sleep.html
Lifehacker - Implement Advanced "Siestas" for Improved Sleep - Nap
http://lifehacker.com/5302591/implement-advanced-siestas-for-improved-sleep

Hah thats a good one very interesting.