Self-reported long sleep in older adults is closely related to objective time in bed
Open accessAbstract
Although self-reported long sleep is associated with increased morbidity and mortality, little is known about the objective sleep patterns and daytime functioning of long sleepers, particularly those aged ≥50 years. Our primary aim was to compare the objective and subjective sleep patterns of a sample (n = 35) of middle- to older-aged adults who reported sleeping ≥8.5 h per night. A secondary aim was to characterize the mood and functioning of the sample. Over a 2-week period, sleep was recorded via actigraphy and a daily diary. Sleepiness was assessed daily. At the conclusion of the 2-week period, daytime sleepiness, mood, and quality of life were assessed. Measures of sleep and functioning were compared with available representative data. In the sample, actigraphic total sleep time (TST; 7.35 ± 0.97 h) was approximately 60 min greater than age-related representative values but substantially less than diary-assessed TST (8.59 ± 0.74 h) and survey-assessed TST (8.92 ± 0.78 h). Survey and diary-based subjective TST assessments agreed more closely with actigraphic time in bed (TIB; 9.11 ± 0.72 h) than TST, and correlations between subjective TST and actigraphic TIB were similar to those between subjective and actigraphic TST. Measures of mood, sleepiness, and daytime functioning were similar to population-representative values. These results suggest that, among middle- to older-aged adults, self-reported long sleep is primarily indicative of long TIB, but it also represents long objective sleep duration, particularly in comparison to age-matched data. Findings of little functional impairment corroborated previous descriptions of older long sleepers.
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Self-reported sleep duration has been only moderately associated with objectively-estimated sleep duration.
“Self-reported sleep duration has been only moderately associated with objectively-estimated sleep duration [122, 123].”
From Association between sleep deficiency and cardiometabolic disease: implications for health disparities (2016) · cites this paper as [123]
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- Authors
- KLINE, C. E., ZIELINSKI, M. R., DEVLIN, T. M., KRIPKE, D. F., BOGAN, R. K., & YOUNGSTEDT, S. D.
- Affiliations
- University of South Carolina (US)
- University of California San Diego (US)
- SleepMed (US)
- Corresponding author
- YOUNGSTEDT, Shawn D
- Venue
- Sleep and Biological Rhythms
- Published
- 2010-01
- Volume
- 8
- Issue
- 1
- Pages
- 42-51
- ISSN
- 1446-9235 (ISSN-L)
- 1479-8425
- PMC
- PMC4157821
- OpenAlex
- W1976752523
- Cited by
- 35
- References
- 40
- Citations by year
- 2026: 3 · 2025: 1 · 2024: 3 · 2023: 1 · 2022: 2 · 2021: 3 · 2020: 3 · 2019: 2 · 2018: 3 · 2017: 3 · 2016: 2 · 2015: 1 · 2014: 1 · 2013: 1 · 2012: 5
- FWCI
- 2.54
- Type
- journal article
- Language
- en
- Open access
- green
- www.ncbi.nlm.nih.gov
- Locations
- Sleep and Biological Rhythms (publishedVersion)
- PubMed (publishedVersion)
- Europe PMC (PubMed Central) (acceptedVersion)
- PubMed Central (acceptedVersion)
- Funders
- National Institutes of Health
- National Heart, Lung, and Blood Institute (R01HL071560)
- Topics
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
- Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
- Life Sciences › Neuroscience › Endocrine and Autonomic Systems › Circadian rhythm and melatonin
- Keywords
- long sleep, older adults, time in bed, total sleep time, actigraphy, self-reported sleep duration, daytime sleepiness, mood, quality of life, daytime functioning
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