IDK that's a tough one for me. I'm definitely a morning person, mostly, but I'm also a night person ... which leaves the rest of the day with me doing a very good zombie impersonation - midmorning to late afternoon is horrible, and I'd love nothing so much as to be sleeping then.
I heard about this guy who split his day up by sleeping 4 hours, doing 8 hours, then another 4 hours - he worked as a freelance programmer, so he could, and he says it was the best change he ever made in his life. I'd love to try that.
Mina.