Sleep less, do more?

Do ambitious people keep longer waking hours, and is this the secret behind their success?

While an average person requires six to seven hours' sleep, one wonders if ambitious people are programmed to restrict their sleeping time.

"Three-four hours of sleep; that does it, for me," says Shah Rukh Khan.

'Iron Lady' Margaret Thatcher isn't far behind — she ruled over Britain with as little sleep on her side. TV host Jay Leno tickles your funny bone with, again, four hours of snooze, while 'Material Girl' Madonna belts out chartbusters with minimum beauty sleep. Benjamin Franklin mirrored Thomas Edison's contempt for sleeping long hours, when he said, "There will be sleeping enough in the grave". Dozing for a mere two to four hours every night, he gave us the famous quote, "Early to bed, early to rise, makes a man healthy, wealthy and wise".

Source: http://www.thehindubusinessline.com/features/life/article2302315.ece?homepage=true