Can you think of any scheduling changes colleges could make to help their students have normal sleep patterns?

I’m in college, and my sleeping habits are, in short, fucked up. For example, I had a 9 AM class, came home at 2 PM, slept until 5:30 PM, and now I’m up at 3:35 AM. I think it’s at least partially due to the amount of work I have, the fact that classes range from 2 to 6 hours long, and they start at a wide variety of times, anywhere between 9 AM and 6 PM. Can you think of any creative ways that colleges could help their students regulate their schedules?