Sleep Results
In high school, I slept probably 4-5 hours a night and took naps on nights that I could. On weekends I'd catch up. This practice resulted in me being very sleep during the day.
During college, I read a fair amount of books on sleep and explored techniques for getting less sleep, and remaining attentive so I could get more hours out of the day. I've also started to explore lucid dreaming, but decided I'd rather spend my time on making more out of my waking hours.
I now sleep as many hours as I need to and generally wake up by myself unless I have an early appointment. I try to keep a routine of going to sleep between 11-1, but that varies (right now it's 3:00am and I can't fall asleep becase of jet lag).
This seems to work very well for me. I'm very rarely tired during the day. Also, on day where I have no choice but to get less sleep, I'm not really affected and I can catch up right away. I think not being sleep makes me more happy and more productive.