350
«circadian (adj.),» Online Etymology Dictionary, .
351
Lockley and Foster, Sleep, 13.
352
Katia Moskvitch, «The Science of Jet Lag… and How Best to Beat It,» BBC Future, November 18, 2014, .
353
Lockley and Foster, Sleep, 19.
354
Ibid., 58.
355
William H. Moorcroft, Sleep, Dreaming & Sleep Disorders: An Introduction (Boston: University Press of America, 1993), 131.
356
Peretz Lavie, The Enchanted World of Sleep, trans. Anthony Berris (New Haven: Yale University Press), 52.
357
Moorcroft, Sleep, Dreaming & Sleep Disorders, 131.
358
«2015 Motorola Global Smartphone Relationship Survey,» The Official Motorola Blog, July 28, 2015, .
359
"What Is Sleep?' American Sleep Association, .
360
«Sleepwalking & Sleep Talking,» American Academy of Sleep Medicine, .
361
«Sleepwalking,» National Sleep Foundation, .
362
«Sleepwalking & Sleep Talking.»
363
«Sleep Talking,» National Sleep Foundation, .
364
William Shakespeare, The Tragedy of Macbeth, ed. Nicholas Brooke (Oxford: Oxford University Press, 1990), 194–95.
365
The Romantics, «Talking in Your Sleep,» In Heat, Nemperor Records, September 1983.
366
Lockley and Foster, Sleep, 9.
367
«Brain Basics: Understanding Sleep,» National Institute of Neurological Disorders and Stroke, .
368
Deirdre Barrett, «What Processes in the Brain Allow You to Remember Dreams?» Scientific American, June 12, 2014, .
369
Eugene Aserinsky and Nathaniel Kleitman, «Regularly Occurring Periods of Eye Motility, and Concomitant Phenomena, During Sleep,» Science 118 (1953): 273–74.