Sleepless : The Developmental Significance of Sleep Quality and Quantity Among Adolescents

Authors

VAZSONYI Alexander T. LIU Dan JAVAKHISHVILI Magda BEIER Julia J. BLATNÝ Marek

Year of publication 2021
Type Article in Periodical
Magazine / Source Developmental psychology
MU Faculty or unit

Faculty of Arts

Citation
Web https://doi.apa.org/doiLanding?doi=10.1037%2Fdev0001192
Doi http://dx.doi.org/10.1037/dev0001192
Keywords internalizing; externalizing; bullying; depression; grades
Description The current study tested the developmental significance of both early adolescent sleep quantity and quality for academic competence and internalizing and externalizing problems over the course of 2 years. As part of an accelerated longitudinal study, data were collected from N = 586 Czech adolescents (M-age = 12.34 years, SD =.89, 58.4% female). Data analyses included a series of logistic regressions that controlled for adolescent sex, age, family structure, and socioeconomic status. Findings showed that sleep quality at Wave 1 predicted developmental changes 1 year later (Wave 3) in depression, anxiety, and low self-esteem (ORrange = 1.7-1.8) and 2 years later (Wave 5) in externalizing behaviors (OR = 2.6). Importantly, despite the associations observed with Wave 3 anxiety and deviance, Wave 1 sleep quantity was unrelated to subsequent developmental changes in adjustment measures, both 1 and 2 years later. No sleep effects at all were observed on a variety of measures of academic competence. Study findings underscore the developmental significance of sleep and indicate greater salience of sleep quality vis-a-vis sleep quantity. They also replicate some of the observed relationships found in previous longitudinal work on the sleep-mood link but extend the sleep-adolescent adjustment literature in a number of important ways.

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