When I was in college I spent about a year working from 6pm to 6am 3 days one week, 4 days the next then going to classes after that. Living on caffein pills was not healthy. It was nice to get a normal part time job that worked around my school after I had enough of that.

BUT my computer engineering career required lots of long hour work with deadlines. I was always driving home after 2am though I would end up starting work after 10am since I did need sleep too.