Multiple physiological and environmental factors affect sleep propensity
the verdict
SUPPORTED
the evidence backs this
confidence 97/100
Extensive scientific literature confirms that sleep propensity is regulated by a combination of homeostatic sleep pressure, genetic factors, circadian rhythms, and neuroendocrine signaling such as melatonin.
Evidence for · 9
The Cumulative Cost of Additional Wakefulness: Dose-Response Effects on Neurobehavioral Functions and Sleep Physiology From Chronic Sleep Restriction and Total Sleep Deprivation
2003 · cited by 3,158
Paper 0 shows that prior wakefulness duration (a physiological state) accumulates as sleep debt, directly affecting subsequent sleep physiology and propensity.
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More for · 8
The two‐process model of sleep regulation: a reappraisal
2016 · cited by 1,587
Paper 2 demonstrates that the two-process model of sleep regulation relies on the interaction between a homeostatic sleep process and a circadian pacemaker.
Contribution of the circadian pacemaker and the sleep homeostat to sleep propensity, sleep structure, electroencephalographic slow waves, and sleep spindle activity in humans
1995 · cited by 1,358
Paper 4 investigates how the endogenous circadian pacemaker and sleep homeostat determine sleep propensity and internal sleep structure.
Role of Melatonin in the Regulation of Human Circadian Rhythms and Sleep
2003 · cited by 725
Paper 5 highlights melatonin as an internal sleep facilitator that modulates circadian components of sleep propensity.
Neurobiology of the Sleep-Wake Cycle: Sleep Architecture, Circadian Regulation, and Regulatory Feedback
2006 · cited by 570
Paper 6 reviews how circadian and homeostatic physiological processes combine to regulate sleep-wake states and sleep propensity.
The Homeostatic Regulation of Sleep Need Is under Genetic Control
2001 · cited by 568
Paper 7 establishes that the homeostatic regulation of sleep need and sleep debt accumulation are under strong genetic control.
Ageing and the circadian and homeostatic regulation of human sleep during forced desynchrony of rest, melatonin and temperature rhythms
1999 · cited by 469
Paper 8 illustrates that aging, core body temperature, and melatonin rhythms interact to alter circadian and homeostatic regulation of human sleep.
Sleep and Circadian Rhythms in Humans
2007 · cited by 415
Paper 9 explains that circadian pacemakers drive daily variations in physiologic variables, interacting with sleep homeostatic regulation to determine sleep propensity.
Melatonin and the Circadian Regulation of Sleep Initiation, Consolidation, Structure, and the Sleep EEG
1997 · cited by 229
Paper 11 demonstrates that melatonin and its circadian rhythm exert direct effects on sleep initiation, consolidation, and sleep propensity.