09/19/2012 09:15 am ET Updated Nov 19, 2012

19 Successful People Who Barely Sleep

Researchers claim that people need around 8 hours of sleep to function properly.
But that's not true for everybody. A small group (1 to 3 percent) of the population are among the "sleepless elite" who are able to get by happily on just a few hours of sleep.

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