887
John Wolf (consumer PR, Marriott), email to Suzy Strutner (associate lifestyle editor, The Huffington Post), September 10, 2015.
888
Ciara Bryne, «A Fitness Giant Eyes the Next Frontier of Personal Training: Sleeping,» Fast Company, February 26, 2015, .
889
Liz Miersch, email to the author, November 6, 2015.
890
Kym Perfetto, email to the author, July 12, 2015.
891
Sue Molnar, email to the author, July 12, 2015.
892
Joey Gonzalez, email to the author, July 16, 2015.
893
R. Morgan Griffin, «Can Sleep Improve Your Athletic Performance?» WebMD, August 13, 2014, .
894
«Cheetah,» National Geographic, animals.nationalgeographic.com; Laura Walters, «Walking with the Cheetahs,» Stuff, October 24, 2014, .
895
Jon Gruden and Vic Carucci, Do You Love Football?!: Winning with Heart, Passion, and Not Much Sleep (New York: HarperCollins, 2004), 232–41.
896
Derickson, Dangerously Sleepy; Deacon Jones, «George Allen's Enshrinement Speech,» Pro Football Hall of Fame, August 3, 2002, .
897
Cheri Mah, email to the author, March 15, 2015.
898
Ibid.
899
Ibid.
900
Cheri D. Mah, Kenneth E. Mah, Eric J. Kezirian, and William C. Dement, «The Effects of Sleep Extension on the Athletic Performance of Collegiate Basketball Players,» SLEEP 34 (2011): 943–50.
