sleeping and rising early

in india, in villages ppl sleep and rise early.. whenever i go2 my village, i wil sleep off by 2000 hrs.. imagine.. tht's the way ppl, maintain their life and keep it moving.. it's a pretty healthy way of living >>

optimal sleeping time

some say 8.. some 7.. some even less.. i feel between 7 - 8 is good.. check out if am rite >>