Pubertal Changes in Daytime Sleepiness
Abstract
Nineteen children (8 girls, 11 boys) were evaluated in a total of 47 three-day sessions across three summers. Children were ranked according to Tanner's stages of secondary sexual characteristics. Nocturnal sleep was recorded from 2200 to 0800 hr each night. Multiple sleep latency tests were given at 2 hr intervals from 0930 each day. Nocturnal sleep time and REM sleep time remained constant across Tanner stages. Slow wave sleep time declined progressively across Tanner stages, with a 40% reduction from prepuberty to maturity. Daytime sleepiness was significantly greater in subjects at Tanner stages 3 and 4 than at Tanner stages 1 and 2. Subjects at Tanner stage 5 tended to be as sleepy as Tanner stage 3 and 4 subjects but did not differ significantly from the less mature subjects. No gender differences were found in daytime sleepiness for children at similar Tanner stages. More mature children were significantly sleepier at 1330 and 1530 than in the late afternoon and evening.
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Growing adolescents require on average as much as 9-10 hours of sleep per night.
“Unlike adults, growing adolescents require on average as much as 9-10 hours of sleep per night [29, 33].”
From The neuroendocrine control of the circadian system: Adolescent chronotype (2012) · cites this paper as [33]
Delayed circadian phase correlates with secondary-sex development in both home-based and laboratory studies of adolescents.
“Both home-based and laboratory studies of adolescents show that delayed circadian phase correlates with secondary-sex development [31, 32, 33, 164], and this correlation holds true for subjective ratings of chronotype and puberty even when grade level in school is held constant [36].”
From The neuroendocrine control of the circadian system: Adolescent chronotype (2012) · cites this paper as [33]
Even the adolescents with earliest parental-set bedtimes only received 8 hrs 10 min of sleep per night, on average, far less than the recommended 9-10 hours.
“However, even the adolescents with earliest parental-set bedtimes only received 8 hrs 10 min of sleep per night, on average [58], far less than the recommended 9-10 hours [33, 29].”
From The neuroendocrine control of the circadian system: Adolescent chronotype (2012) · cites this paper as [33]
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- Authors
- Mary, A. C., Harvey, K., Duke, P., Thomas, F. A., Iris, F. L., & William, C. D.
- Affiliations
- Stanford Medicine (US)
- Corresponding author
- Mary, A. Carskadon
- Venue
- Sleep
- Publisher
- Oxford University Press (OUP)
- Published
- 1980-09
- Volume
- 2
- Issue
- 4
- Pages
- 453-460
- ISSN
- 0161-8105 (ISSN-L)
- 1550-9109
- OpenAlex
- W1578881298
- Cited by
- 545
- References
- 0
- Citations by year
- 2025: 8 · 2024: 8 · 2023: 15 · 2022: 14 · 2021: 15 · 2020: 12 · 2019: 17 · 2018: 24 · 2017: 16 · 2016: 25 · 2015: 25 · 2014: 38 · 2013: 38 · 2012: 36
- FWCI
- 1.87
- Type
- journal article
- Language
- en
- Open access
- closed
- Locations
- SLEEP (publishedVersion)
- PubMed (publishedVersion)
- Funders
- Spencer Foundation
- William and Flora Hewlett Foundation
- National Institute of Mental Health
- 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
- puberty, daytime sleepiness, multiple sleep latency test, slow-wave sleep, REM sleep, nocturnal sleep, Tanner stages, secondary sexual characteristics, children, sleep timing, sex differences
- MeSH terms
- Adolescent, Child, Female, Humans, Male, Puberty, Sleep Stages, Wakefulness
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