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Polyphasic Sleep

11. October 2009

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Polyphasic sleep, a term coined by early 20th century psychologist J.S. Szymanski, refers to the practice of sleeping multiple times in a 24-hour period—usually, more than two, in contrast to biphasic sleep —and does not imply any particular schedule. See also Segmented sleep and Sleep (Optimal amount). The term polyphasic sleep is also used by […]

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