ArticleJournal of sleep research2022
How much does sleep vary from night-to-night? A quantitative summary of intraindividual variability in sleep by age, gender, and racial/ethnic identity across eight-pooled datasets.
Article in Journal of sleep research, 2022. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers.
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Who cites it
21 citing papers in PubMed.
- Trial
- Adolescents' daily affect predicts their mobile phone use (not the other way around).Journal of research on adolescence : the official journal of the Society for Research on Adolescence · 2026Article
- Intraindividual sleep variability in young adult women with posttraumatic stress disorder symptoms and hazardous alcohol use after sexual assault.Journal of behavioral medicine · 2026Article
- Sleep fragmentation correlates with amyloid beta deposition at brain autopsy.Alzheimer's & dementia : the journal of the Alzheimer's Association · 2026Article
- New Obstructive Sleep Apnoea Multi-Night Diagnostic Devices. Is a Single Night of Measurement Now Considered Enough?Respirology (Carlton, Vic.) · 2026Article
- Article
- Sleep in myalgic encephalomyelitis/chronic fatigue syndrome shows marked night-to-night fluctuation under free-living conditions-results from a matched case-control study.Journal of clinical sleep medicine : JCSM : official publication of the American Academy of Sleep Medicine · 2026Article
- An open science resource for accelerating scalable digital health research in autism and other neurodevelopmental conditions.Nature neuroscience · 2026Article
- Article
- The role of sleep quality and duration in associations between daily minority stress and next-day suicidal ideation in LGBTQ+ youth.Journal of affective disorders · 2025Article
- The stability of slow-wave sleep and EEG oscillations across two consecutive nights of laboratory polysomnography in cognitively normal older adults.Journal of sleep research · 2025Article
- Sociodemographic differences in young adult actigraphic sleep among a diverse, national sample: the Future of Families Young Adult Sleep Study.Sleep advances : a journal of the Sleep Research Society · 2025Article
- Sleep Characteristics During the First Year Postpartum in a Cohort of Black and White Women.Sleep epidemiology · 2024Article
- Correlates of sleep variability in a mobile EEG-based volunteer study.Scientific reports · 2024Article
- Irregular sleep is linked to poorer mental health: A pooled analysis of eight studies.Sleep health · 2024Article
- Age, sex and race distribution of accelerometer-derived sleep variability in US school-aged children and adults.Scientific reports · 2023Article
- Day-to-day deviations in sleep parameters and biological aging: Findings from the NHANES 2011-2014.Sleep health · 2023Article
- Sleep Variability, Eating Timing Variability, and Carotid Intima-Media Thickness in Early Adulthood.Journal of the American Heart Association · 2023Article
- Using a frequentist and Bayesian approach to examine video game usage, substance use, and sleep among college students.Journal of sleep research · 2023Article
- Sleep in everyday life - relationship to mood and performance in young and older adults: a study protocol.Frontiers in psychology · 2023Article
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8 authors.
Funding
Abstract
Habitual sleep duration and efficiency vary widely by age, gender, and racial/ethnic identity. Despite growing research on the importance of night-to-night, intraindividual variability (IIV) in sleep, few studies have examined demographic differences in sleep IIV. The present study describes typical sleep IIV overall and by demographics among healthy sleepers. Eight datasets of healthy sleepers (N = 2,404; 26,121 total days of sleep data) were synthesised to examine age, gender, and racial/ethnic identity differences in sleep IIV measured via diaries, actigraphy, and electroencephalography (EEG). Sleep IIV estimates included the intraindividual standard deviation (iSD), root mean square of successive differences (RMSSD), coefficient of variation (CV), and a validated Bayesian Variability Model (BVM). There was substantial IIV in sleep across measurement types (diary, actigraphy, EEG) for both sleep duration (iSD: 85.80 [diary], 77.41 [actigraphy], 67.04 [EEG] minutes; RMSSD: 118.91, 108.89, 91.93 minutes; CV: 19.19%, 19.11%, 18.57%; BVM: 60.60, 58.20, 48.60 minutes) and sleep efficiency (iSD: 5.18% [diary], 5.22% [actigraphy], 6.46% [EEG]; RMSSD: 7.01%, 7.08%, 8.44%; CV: 5.80%, 6.27%, 8.14%; BVM: 3.40%, 3.58%, 4.16%). Younger adults had more diary and actigraphy sleep duration IIV. Gender differences were inconsistent. White and non-Hispanic/Latinx adults had less IIV in sleep duration and efficiency compared to racial/ethnic minority groups. Even among healthy sleepers, sleep varies widely from night-to-night. Like mean sleep, there also may be disparities in IIV in sleep by demographic characteristics. Study results help characterise normative values of sleep IIV in healthy sleepers.
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