> "Based on ... about 10,000 empirical scientific studies, the number of people who can survive on six hours of sleep or less without showing any impairment, rounded to a whole number ... is zero."
This statement made me think about reports of successful people wherein one supposed factor to their success was ability to "function" on less sleep (Marissa Mayer 4 hours, Jon Gruden 4 hours, Tom Ford 3 hours)