0789 Why So Slangry? (Sleepy and Angry) Nightly Sleep Duration and Efficiency Predict Individual Teens' Next-Day Reports of Mood. (12th April 2019)

• Record Type: Journal Article
• Authors: Master, Lindsay; Nahmod, Nicole G; Hale, Lauren; Chang, Anne-Marie; Buxton, Orfeu M
• Is Part Of: Sleep. Volume 42(2019)Supplement 1
• Page Start: A317
• Page End: A317
• Publication Date: 2019-04-12
• Subjects: Sleep -- Physiological aspects -- Periodicals; Sleep disorders -- Periodicals; Sommeil -- Aspect physiologique -- Périodiques; Sommeil, Troubles du -- Périodiques; Sleep disorders; Sleep -- Physiological aspects; Sleep -- physiological aspects; Sleep Wake Disorders; Psychophysiology; Electronic journals; Periodicals; 616.8498
• DOI: 10.1093/sleep/zsz067.787
• Languages: English
• ISSNs: 0161-8105

Abstract

Abstract: Introduction: A majority of American adolescents sleep less than the recommended 8-10 hours per night. Studies indicate that adolescents who are sleep deficient report more emotional and behavioral problems, including greater stress, anger, and anxiety. The purpose of this study was to evaluate daily associations between actigraphic nighttime sleep duration and sleep maintenance efficiency (calculated between sleep onset and sleep offset) and next-day mood (anger, loneliness, happiness) among urban adolescents. Methods: Participants were enrolled in the Fragile Families & Child Wellbeing Study, a longitudinal birth cohort of children from 20 U.S. cities. When the children were approximately 15 years old, a sub-sample (N=577) concurrently wore a wrist actigraphic sleep monitor (Actiwatch Spectrum, Philips Respironics) and completed daily diaries that included questions about mood (5-point Likert scales) for one week, from which nighttime sleep measures and next-day self-reported mood were determined. Multilevel models tested the within-person temporal association of nightly sleep duration and sleep maintenance efficiency with next-day feelings of happiness, anger, and loneliness. The models also tested the between-person association of sleep variables and mood. Analyses adjusted for sociodemographic and family characteristics, and weekend/school year. Results: Within individuals, on nights when sleep duration was shorter than that individual's average, next-day anger ratings were higher (p<.01), but no statistically significant association was shown for sleep maintenance efficiency and next-day anger. On nights when an individual had higher sleep maintenance efficiency than their average, next-day happiness ratings were higher (p<.01). Within-person sleep duration and sleep maintenance efficiency were not related to next-day loneliness. At the between-person level, those who slept shorter than the sample average reported higher ratings of anger (p<.01) and loneliness (p<.01) but sleep maintenance efficiency was unrelated to anger, happiness, and loneliness. Conclusion: Our results illustrate that within-person improvements to nightly sleep may help increase next-day feelings of happiness and decrease feelings of anger in adolescents. This suggests that promoting healthy sleep habits may improve next-day and overall mood. Support (If Any): R01HD073352