My hours depend on what I have going on at the time. But usually I'll go to bed somewhere between 1am and 3am, back up at 6:30 to make sure my roomate doesn't oversleep and to let the dogs out, back to bed until 8-8:30ish, and then on with the day.

If I'm really tired I'll go to bed around midnight, but then I'm lucky to sleep through the night...