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Cited by 109Sleep and Wakefulness ResearchSleep and related disordersCircadian rhythm and melatonin

The DOI matches its Crossref record.

Passive Body Heating and Sleep: Influence of Proximity to Sleep

Bunnell, David E., Agnew, James A., Horvath, Steven M., Jopson,, Linda, Wills, Marsha·1988·Sleep
DOI 10.1093/sleep/11.2.210
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Abstract

Previous studies have found enhanced delta sleep following body heating. This study assessed the influence of body heating as a function of its proximity to sleep. Electroencephalogram (EEG) sleep patterns were compared following body heating (1 h immersion in water at 41 degrees C) at each of four times of day: morning (MO), afternoon (AF), early evening (EE), and late evening (LE), ending just prior to sleep. A delta filter/integrator system provided objective measures of delta content. Relative to baseline nights, whole-night delta sleep was increased by the two evening heating sessions only, particularly LE heating. Following LE, the increased delta occurred primarily in the first sleep cycle, whereas EE heating elicited increased delta distributed across the later sleep cycles (cycles 2-4). Effects on manually staged indices of slow wave sleep (SWS) were confined to increases in Stage 4 in the first sleep cycle following LE heating. Heating just prior to sleep also resulted in a substantial reduction in the duration of the first rapid eye movement sleep period. Sleep onset time was reduced by heating, particularly EE heating. The results indicate that body heating induces temporary changes that affect sleep propensity and both the quantity and temporal distribution of delta activity in the sleep EEG.

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Crossref · 10.1093/sleep/11.2.210

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Metadata

Authors
Bunnell, D. E., Agnew, J. A., Horvath, S. M., Jopson, & Wills, M.
Affiliations
University of California, Santa Barbara (US)
Corresponding author
Bunnell, David E.
ORCID
Bunnell, David E.
Venue
Sleep
Publisher
Oxford University Press (OUP)
Published
1988-03
Volume
11
Issue
2
Pages
210-219
ISSN
  • 0161-8105 (ISSN-L)
  • 1550-9109
DOI
10.1093/sleep/11.2.210
OpenAlex
W2409143442
Cited by
109
References
0
Citations by year
2026: 2 · 2025: 2 · 2023: 1 · 2022: 6 · 2021: 6 · 2020: 3 · 2019: 3 · 2018: 3 · 2017: 2 · 2015: 1 · 2013: 4 · 2012: 4
FWCI
1.51
Type
journal article
Language
en
Open access
closed
Locations
  • SLEEP (publishedVersion)
  • PubMed (publishedVersion)
Topics
  • Life Sciences › Neuroscience › Cognitive Neuroscience › Sleep and Wakefulness Research
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
Keywords
sleep onset, delta sleep, slow-wave sleep, REM sleep, sleep timing, sleep cycles, sleep latency, sleep propensity, sleep EEG, hot water immersion
MeSH terms
Adult, Body Temperature Regulation, Brain, Electroencephalography, Female, Hot Temperature, Humans, Male, Sleep Stages, Time Factors

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