“the boys had some difficulty in keeping awake … We employed watchers to [wake them] and in time they got used to it” http://www.theatlantic.com/health/archive/2014/05/thomas-edison-and-the-cult-of-sleep-deprivation/370824/ …
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“the boys had some difficulty in keeping awake … We employed watchers to [wake them] and in time they got used to it” http://www.theatlantic.com/health/archive/2014/05/thomas-edison-and-the-cult-of-sleep-deprivation/370824/ …