[CJFusco]

It's almost always something mental-psychologically-related. Usually stress. From what I've read, the "waking up after a few hours" problem is harder to diagnose than "I can't fall asleep".

By most accounts, people that wake up in the middle of the night often do so because they've used alcohol or sleep medicine to help them fall asleep. EIther that or they drank too much liquid before they went to bed and wake up with a pressing need to urinate. The third common reason for waking up in the middle of the night is that the sleeping is dreaming about something unpleasant.

Sleeping from 9 or 10 til 2 or 2:30 doesn't sound extremely terrible, but I understand that you'd be pretty annoyed and burnt out by the weekend. I go through a thing in which, every 4 or 5 months, for a few nights in a row, I jus tcan't falll asleep. During these periods, I get 2 hours of sleep a night. I used to stress out about it and figure out things I could do to help me sleep, but I found that the WORST thing you can do is think about trying to sleep. This will only make things worse.

Do you get a lot of exercise? A very VERY common reason for not sleeping enough is that the body hasn't burned off enough energy during the day, so it is restless at night.