During the week, since I have school, I generally go to bed and wake up rather early. When waking up, I always try to get up at 6 AM to get a shower and whatever else then leave for school at 7:30. When I go to bed in the evening, it's usually anyway around 11 PM to 3 AM. Sometimes this changes with the more I get exhausted, so 11 PM becomes... 6 to 8 PM, which is frankly ridiculous. How late I stay up generally depends on what I have to work on (which is usually not school work).
On the weekends, I party pretty much every weekend, so I normally end up with a really erratic sleeping schedule. I'll go to bed maybe 10:30 - 4:30 on a Friday night, and on a Saturday night I usually will never sleep before 2 AM. Sometimes I neglect sleep almost entirely. I almost always wake up around 8 AM Sunday morning, though. 11 AM is probably the norm for Saturday morning.