Dongsung Kim How do you manage sleep? I mean, to me it's so hard to do say, let's sleep X hours and get up, and it ends up X+X hours. Being unemployed (and waiting for the next semester) do a great job keeping me distracted. :$ Well, I've lost my passion that's for sure...

Adam Douglas Roughly 90 minutes a day. Sometimes more but generally I always feel more lethargic if I sleep longer than 4 hours.

Mark Dain For me I average around 6 hours of sleep, often less as I just can't get the time. I'd like at least 8. On days where I don't have work, I usually do around 12 hours, sometimes more since I don't set an alarm clock, I just wake up when I feel rested.