799
Amy Capetta, «6 Ways to Fight Jet Lag (and Not Be Too Tired to Enjoy Your Trip!),» TODAY, September 13, 2014, .
800
«Entrain Yourself,» University of Michigan, entrain.math.lsa.umich.edu.
801
«Re-Timer Light Therapy 'Sunglasses' May Help Regulate Circadian Rhythms,» Sleep Review, July 28, 2014, .
802
Chris Winter, email to the author, June 5, 2015.
803
Capetta, «6 Ways to Fight Jet Lag.»
804
Sid Lipsey, «Flight Attendants' Tips for Sleeping Well on a Plane,» Yahoo! Travel, September 17, 2015, .
805
«The Nap,» Seinfeld, NBC (April 10, 1997).
806
Torbjorn Akerstedt, Johanna Garefelt, Anne Richter, Hugo Westerlund, Linda Magnusson Hanson, and Magnus Sverke, «Work and Sleep – A Prospective Study of Psychosocial Work Factors, Physical Work Factors, and Work Scheduling,» SLEEP 38 (2015): 1122379–36.
