I hate feeling like a slave to my own bodily urges

I'll admit, I let my urge to sleep control me too often and I think I will accomplish more when I take control of that. But there are some people who indulge in their sleep and their food and their sex, but still manage to become successful. Could they be more successful by abiding to your terms? Perhaps. I believe I read that Einstein slept 12 hours a night. Perhaps had he chose a less indulgent routine, we'd have a time machine by now..