From John Carmack:
> I often worked nights and slept during the day, but I almost always got 8 hours of sleep. There are still 112 hours left in the week!
> I often worked nights and slept during the day, but I almost always got 8 hours of sleep. There are still 112 hours left in the week!
I found that when hacking for a several months on a solo prototype project, my hours drifted later and later so that I ended up going to bed around 4 a.m., and rising at 11. It's really hard to correct! In terms of productivity, though, the wee small hours are hard to beat.