I tried my whole life to get up early, one day I just gave up. Started my own company, bought a house - now I live and work like nature made me. No, I wear clothes, it's just the sleep. Btw it's interesting when you're hiring how many people are like that and love the hours. I can recommend that to every night person.
Most of the startups I've worked for dont have any of their meetings until nearly lunch time to account for the fact that most programmers stay up late