Recently I've been going to sleep around pretty much the same time every day, around 2-4 AM. I try to go to bed earlier in that period Monday and Wednesday nights, so I wouldn't have to be tired when I drive to my 11 AM class in college (I like lots of sleep). Mondays, Wednesdays, and Fridays are a nice breath of fresh air for me, the former two days because the only class I have that day is at 3:30 PM and ends at 4:45, and the latter day because I have no classes on Fridays. As you can see, though, I don't mind having a class at that time, because the going to school before 7 AM thing was tiring for me.
Though I do like to get up in time to watch The Price is Right those three days. Tuesdays and Thursdays, I video tape it and watch it when I get home.
Saturdays and Sundays I sleep in, recently until around 2:30 PM.
Honestly? I still feel like I'm on Summer vacation. Except it's not hot anymore. =)