Morgan J Thompson, Zeynep Su Altinoz, Alexandra D Ehrhardt, J Benjamin Hinnant, Stephen A Erath, Joseph A Buckhalt, Mona El-Sheikh
{"title":"Sleeping through the ages: Developmental trajectories of actigraphy-derived sleep-wake patterns across adolescence and emerging adulthood.","authors":"Morgan J Thompson, Zeynep Su Altinoz, Alexandra D Ehrhardt, J Benjamin Hinnant, Stephen A Erath, Joseph A Buckhalt, Mona El-Sheikh","doi":"10.1037/dev0002170","DOIUrl":null,"url":null,"abstract":"<p><p>Sleep is a fundamental domain of development and has important implications for other key aspects of adaptation. Little is known about normative changes in sleep across adolescence and emerging adulthood and whether the change is linear or nonlinear. We examined growth trajectories of sleep across 9 years of development and individual differences in trajectories according to participants' race/ethnicity and sex assigned at birth. During each wave, we measured four key actigraphy-derived sleep parameters over 1 week, including duration (number of minutes spent asleep), efficiency (percentage of time scored as sleep), midpoint (preferences for morningness-eveningness), and consistency/variability in duration (night-to-night fluctuations in duration over 1 week). Participants (<i>N</i> = 295, 53% female, 69% European American/White, 30% African American/Black, and 1% biracial) from diverse socioeconomic backgrounds completed five waves of data (<i>M</i><sub>ages</sub> at each wave: 15, 16, 17, 22, and 24). We observed a cubic trajectory for sleep duration whereby sleep duration declined across adolescence, increased into emerging adulthood, and declined again from 22 to 24. Consistency/variability in sleep duration also exhibited a cubic trajectory. Nightly fluctuations in sleep duration decreased from 15 to 16, increased from 16 to 22, and decreased again from 22 to 24. We found a quadratic trajectory for sleep midpoint, indicating a progressively greater preference for eveningness. Sleep efficiency exhibited linear growth and improved over time. Differences in trajectories for sleep duration and sleep efficiency emerged based on participants' race and sex. Findings indicated significant changes in the developmental trajectories of four sleep parameters across adolescence and emerging adulthood and underscore the importance of nonlinear assessments. (PsycInfo Database Record (c) 2026 APA, all rights reserved).</p>","PeriodicalId":48464,"journal":{"name":"Developmental Psychology","volume":" ","pages":"2393-2411"},"PeriodicalIF":2.7000,"publicationDate":"2026-11-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC12974240/pdf/","citationCount":"0","resultStr":null,"platform":"Semanticscholar","paperid":null,"PeriodicalName":"Developmental Psychology","FirstCategoryId":"102","ListUrlMain":"https://doi.org/10.1037/dev0002170","RegionNum":2,"RegionCategory":"心理学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"2026/3/9 0:00:00","PubModel":"Epub","JCR":"Q2","JCRName":"PSYCHOLOGY, DEVELOPMENTAL","Score":null,"Total":0}
引用次数: 0
Abstract
Sleep is a fundamental domain of development and has important implications for other key aspects of adaptation. Little is known about normative changes in sleep across adolescence and emerging adulthood and whether the change is linear or nonlinear. We examined growth trajectories of sleep across 9 years of development and individual differences in trajectories according to participants' race/ethnicity and sex assigned at birth. During each wave, we measured four key actigraphy-derived sleep parameters over 1 week, including duration (number of minutes spent asleep), efficiency (percentage of time scored as sleep), midpoint (preferences for morningness-eveningness), and consistency/variability in duration (night-to-night fluctuations in duration over 1 week). Participants (N = 295, 53% female, 69% European American/White, 30% African American/Black, and 1% biracial) from diverse socioeconomic backgrounds completed five waves of data (Mages at each wave: 15, 16, 17, 22, and 24). We observed a cubic trajectory for sleep duration whereby sleep duration declined across adolescence, increased into emerging adulthood, and declined again from 22 to 24. Consistency/variability in sleep duration also exhibited a cubic trajectory. Nightly fluctuations in sleep duration decreased from 15 to 16, increased from 16 to 22, and decreased again from 22 to 24. We found a quadratic trajectory for sleep midpoint, indicating a progressively greater preference for eveningness. Sleep efficiency exhibited linear growth and improved over time. Differences in trajectories for sleep duration and sleep efficiency emerged based on participants' race and sex. Findings indicated significant changes in the developmental trajectories of four sleep parameters across adolescence and emerging adulthood and underscore the importance of nonlinear assessments. (PsycInfo Database Record (c) 2026 APA, all rights reserved).
期刊介绍:
Developmental Psychology ® publishes articles that significantly advance knowledge and theory about development across the life span. The journal focuses on seminal empirical contributions. The journal occasionally publishes exceptionally strong scholarly reviews and theoretical or methodological articles. Studies of any aspect of psychological development are appropriate, as are studies of the biological, social, and cultural factors that affect development. The journal welcomes not only laboratory-based experimental studies but studies employing other rigorous methodologies, such as ethnographies, field research, and secondary analyses of large data sets. We especially seek submissions in new areas of inquiry and submissions that will address contradictory findings or controversies in the field as well as the generalizability of extant findings in new populations. Although most articles in this journal address human development, studies of other species are appropriate if they have important implications for human development. Submissions can consist of single manuscripts, proposed sections, or short reports.