*Research has shown that humans really don't need 8hrs sleep to work at their op...

Research has shown that humans really don't need 8hrs sleep to work at their optimal best and 4-5 hrs of sleep should be more than enough.

Citation please? It's my understanding that losing even 1 hour of sleep a night will add up over time and cause all sorts of cognitive problems.

dotBen on Nov 14, 2011 [–]

(pssst, andrewpi, I think theshaddow's parent comment is tongue-in-cheek.)