William Dement gave a Google Tech talk on September 23, 2008. Dement recalls that Randy Gardner who stayed awake for 11 days in 1964, when asked some 40years la

William Dement gave a Google Tech talk on September 23, 2008. Dement recalls that Randy Gardner who stayed awake for 11 days in 1964, when asked some 40years later "would you do this again?" he replied "No way would I do this again" [0] Very interesting from Dement's talk is that equilibrium daily average sleep for completely health young adults is 8:15 ± 50min [1]. Most people I meet contest these results and state that they can work optimal with less than 7h25m daily sleep. [0] https://www.youtube.com/watch?v=8hAw1z8GdE8&t=1310 https://www.youtube.com/watch?v=8hAw1z8GdE8&t=1310 [1] https://www.youtube.com/watch?v=8hAw1z8GdE8&t=28m29s https://www.youtube.com/watch?v=8hAw1z8GdE8&t=28m29s