6
Lynn Celmer (communications coordinator, American Academy of Sleep Medicine), email to the author, March 19, 2015.
7
Ray Bradbury, Farewell Summer (New York: William Morrow, 2007), Kindle edition. (Брэдбери Р. Лето, прощай. – М.: Эксмо, 2009.)
8
Jeffrey M. Jones, «In U.S., 40 % Get Less Than Recommended Amount of Sleep,» Gallup, December 19, 2013, .
9
Alan Derickson, Dangerously Sleepy: Overworked Americans and the Cult of Manly Wakefulness (Philadelphia: University of Pennsylvania Press, 2013), Kindle edition.
