Out of 26 historical geniuses, a whopping 22 got seven or more overnight hours of slumber. Perhaps toiling over “too many notes,” the genius with the fewest hours (5) was Mozart. Meanwhile, Sigmund Freud (cocaine!) racked up just 6 hours of sleep on average.
At the top of the scale, clocking in at a healthy 9 hours, were B.F. Skinner, Flannery O’Connor, and William Styron. American icon Benjamin Franklin, renowned for such “health” habits as naked air baths, clocked in at a respectable seven hours.
Source: NY Magazine