I didn't read all the posts...

But, I don't get it, 1am->9am == 8 hours of sleep.

I scheduled all my classes my freshmen year for noon. To do that my lab was 8 in the morning once a week. So I went to bed after 3am everyday (still got almost 8 hours of sleep) and just stayed up all night so I could make it to lab.

Towards the end I liked 9am classes cuz I could be done by 1 or 2 which is awesome.