After Elon Musk mentioned his sleeping patterns on a couple of recent interviews (answer: 6 hours a night), I've been curious to learn about the sleeping patterns, diets and work habits of exceptionally productive people.

I wish biographies on the world's most influential people discussed this (or at least I would like to read scientific studies on this)... Warren Buffet and Bill Gates are famously fond of burgers so I'd expect unfortunately diet habits have more to do with where you live than what you accomplish :(