Do you need 8 hours of sleep ?
Relentless productivity
(found through
lifehack.org
) has a pretty good article, on whether you need 8 hours of sleep. He gives a couple of references to show that, the must-sleep-8-hours is a fallacy. He says that each person has their own sleep requirement. There is also a nice way to experiment and determine your sleep requirement. Try it out yourself.
[link]