When I was a student, I used to go to bed at 7:00-8:00 and wake up at 12:00-13:00, so that's about 5 hours. When saturday came, I visited my parents, went to bed at 12:00, saturday noon and woke up at 16:00, sunday afternoon.
I really miss those days.
Sounds about the same as me for my first two semesters. Only difference is instead of going home on the weekends I would take an hour nap before my early Friday class then go back to sleep until Saturday after the class was over. Glad I'm not doing that anymore :)
Off topic:
Are you the kaitnieks that created Autorune and SCAR?