35
Derickson, Dangerously Sleepy.
36
«New ILO Study Shows U.S. Workers Are Spending an Extra Week on the Job Each Year,» International Labor Organization press release, August 31, 2001, .
37
Rafat Ali, «Travel Habits of Americans: 42 Percent Didn't Take Any Vacation Days in 2014,» Skift, January 5, 2015, .
38
Maria Konnikova, «Why Can't We Fall Asleep?» The New Yorker, July 7, 2015, .
39
«Short Sleep Duration Among Workers – United States, 2010,» Morbidity and Mortality Weekly Report, April 27, 2012, .
40
Marie Soderstrom, Kerstin Jeding, Mirjam Ekstedt, Aleksander Perski, and Torbjorn Akerstedt, «Insufficient Sleep Predicts Clinical Burnout,» Journal of Occupational Health Psychology 17 (2012): 175–83.
