I'm a very lazy person. I spend most of my time in a chair, at a computer; I eat more than three meals a day. I don't do any sport, at all.
What I want to know is: why do I need to sleep 8-12 hours daily since I don't waste myself physically during the day?!
Wouldn't 3-5 hours be more reasonable? With an increase to 7-10 if I were a bodybuilder or a construction worker.. something that would actually deplete my body of energy?