Daily fluctuations in adolescents' sleep predict next-day attention, sleepiness, and fatigue: an ecological momentary assessment study over 28 days
- Author(s)
- Shen, L; Nicolazzo, J; Sletten, TL; Anderson, C; Yap, Y; Wiley, JF; Bei, B;
- Journal Title
- Journal of Child Psychology and Psychiatry, and Allied Disciplines
- Publication Type
- Online publication before print
- Abstract
- BACKGROUND: Current understanding of the associations between adolescents' daily sleep and daytime alertness and fatigue under naturalistically occurring restricted (school) and unrestricted (vacation) sleep opportunities is limited. METHODS: A convenience sample of adolescents (n = 205; 54.1% females, M(age) ± SD = 16.9 ± 0.87 years) completed daily measures of sleep, alertness, and fatigue over 28 days (2 weeks during school, and the subsequent 2-week vacation). Actigraphy and sleep diary total sleep time (TST) and sleep efficiency (SE) were measured. Participants self-reported sleepiness and fatigue every morning and afternoon, and completed a tablet-based, 3.2-min psychomotor vigilance task (PVT) every afternoon. Cross-lagged multilevel models tested daily TST and SE as predictors of next-day subjective sleepiness/fatigue and PVT performance. Between- (i.e., differences between individuals) and within-person associations (i.e., whether nights with higher-than-individual's-average TST/SE, predict next-day outcomes) were tested simultaneously. Covariates included previous-day outcome, day of the week, study day (1-28), school/vacation, chronotype, and sociodemographic variables. RESULTS: Within-persons, higher-than-average TST and SE (both actigraphy and diary) predicted better next-day PVT performance (all p ≤ .006), and lower subjective sleepiness and fatigue the following morning and afternoon (all p ≤ .032). Between-persons, adolescents with higher overall diary SE had lower morning subjective sleepiness (p < .001) and fewer PVT false starts in the afternoon (p = 0.02). CONCLUSIONS: Nights with longer- and higher-than-average sleep efficiency (both actigraphy and diary) predicted better daytime alertness and fatigue, both when examined objectively via sustained attention and via self-report. These findings are relevant for understanding the significance of sleep for adolescents' day-to-day alertness levels and fatigue, particularly in the context of classroom learning and road safety.
- Keywords
- Adolescent; alertness; ecological momentary assessment; fatigue; psychomotor vigilance task; sleep duration; sleep efficiency; sleepiness
- Department(s)
- Psychosocial Oncology
- Publisher's Version
- https://doi.org/10.1111/jcpp.14076
- Terms of Use/Rights Notice
- Refer to copyright notice on published article.
Creation Date: 2024-12-19 05:48:15
Last Modified: 2024-12-19 05:48:41