Sleep pattern with more than one period of sleep in a 24-hour period
Polyphasic sleep is the practice of sleeping during multiple periods over the course of 24 hours, in contrast to monophasic sleep, which is one period of sleep within 24 hours. Biphasic (or diphasic, bifurcated, or bimodal) sleep refers to two periods, while polyphasic usually means more than two.[1]Segmented sleep and divided sleep may refer to polyphasic or biphasic sleep, but may also refer to interrupted sleep, where the sleep has one or several shorter periods of wakefulness, as was the norm for night sleep in pre-industrial societies.
A common form of biphasic or polyphasic sleep includes a nap, which is a short period of sleep, typically taken between the hours of 9 am and 9 pm as an adjunct to the usual nocturnal sleep period. Napping behaviour during daytime hours is the simplest form of polyphasic sleep, especially when the naps are taken on a daily basis.
The term polyphasic sleep was first used in the early 20th century by psychologist J. S. Szymanski, who observed daily fluctuations in activity patterns.[2] It does not imply any particular sleep schedule. The circadian rhythm disorder known as irregular sleep-wake syndrome is an example of polyphasic sleep in humans. Polyphasic sleep is common in many animals, and is believed to be the ancestral sleep state for mammals, although simians are monophasic.[3]
The term polyphasic sleep is also used by an online community that experiments with alternative sleeping schedules in an attempt to increase productivity. There is no scientific evidence that this practice is effective or beneficial.[4][5]
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^Stampi 1992
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^"People Are Sleeping in 20-Minute Bursts To Boost Productivity". Time. 30 January 2018. Retrieved 10 August 2023.
^Weaver, Matthew D.; Sletten, Tracey L.; Foster, Russell G.; Gozal, David; Klerman, Elizabeth B.; Rajaratnam, Shantha M. W.; Roenneberg, Till; Takahashi, Joseph S.; Turek, Fred W.; Vitiello, Michael V.; Young, Michael W.; Czeisler, Charles A. (June 2021). "Adverse impact of polyphasic sleep patterns in humans: Report of the National Sleep Foundation sleep timing and variability consensus panel". Sleep Health. 7 (3): 293–302. doi:10.1016/j.sleh.2021.02.009. ISSN 2352-7226. PMID 33795195.
Polyphasicsleep is the practice of sleeping during multiple periods over the course of 24 hours, in contrast to monophasic sleep, which is one period...
hours. A nap is a form of biphasic or polyphasicsleep, where the latter terms also include longer periods of sleep in addition to one period. For years...
uses only one (UTC+8). In polyphasicsleep, an organism sleeps several times in a 24-hour cycle, whereas in monophasic sleep this occurs all at once. Under...
engaged in polyphasicsleep, dividing sleep into multiple bouts per day. Higher daily sleep quotas and shorter sleep cycles in polyphasic species as compared...
of caffeine while trying to sleep. Biphasic and polyphasicsleep Circadian rhythm "What Happens During Sleep? | UPMC Sleep Medicine Resources". UPMC |...
Übermensch, Friedrich Nietzsche's Superman The Uberman's sleep schedule, a form of polyphasicsleep cycle This disambiguation page lists articles associated...
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well in later life. In August 2006, Turnbull agreed to take part in a polyphasicsleep experiment presented on BBC One's The One Show. In this experiment...
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car, and the Dymaxion world map. Dymaxion also came to describe a polyphasicsleep schedule he followed, consisting of four 30-minute naps throughout...
keeping the lips shut while sleeping with a strip of surgical tape. This is intended to prevent mouth breathing during sleep. The health effects of mouth...
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from sleep Nightmare – Unpleasant dream Night terror – Sleep disorder causing feelings of panic or dread Biphasic and polyphasicsleep – Sleep pattern...
the generally monophasic pattern (sleeping once per day) of nocturnal and diurnal species as it is polyphasic (sleeping 4-6 times per day) and is approximately...
long distance sail boat racing comrades, who had adopted a systematic polyphasicsleep pattern with minimal impairment. Stampi participated in two global...
Retrieved 2012-07-27. "PolyphasicSleeping". Archived from the original on December 18, 2014. Retrieved February 28, 2016. "In My Sleep". Rotten Tomatoes....
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in signal processing Polyphase system, in electrical engineering Polyphasicsleep Polyphase quadrature filter This disambiguation page lists articles...
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the back). Skalman seems to be a polyphasic sleeper, and according to himself, his best invention is the food-and-sleep clock, whose calls he follows slavishly...
Gallery, Toronto ON, October 15". exclaim.ca. Retrieved 2016-03-14. "Polyphasic Recordings: CCMC". polyphasicrecordings.com. Retrieved 2016-03-14. "CCMC"...
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