Delayed school start time is associated with better sleep, daytime functioning, and life satisfaction in residential high-school students

Publication date: July 2018 Source:Journal of Adolescence, Volume 66 Author(s): Christian S. Chan, Cyanea Y.S. Poon, Jacklyn C.Y. Leung, Kristy N.T. Lau, Esther Y.Y. Lau The effects of a delayed school start time by one hour were examined at a boarding school in Hong Kong. Two cohorts of high school students (N = 228; 61.8% female) were recruited respectively before and after a school start time changed from 7:30am to 8:30am. Both cross-cohort and within-cohort longitudinal comparisons yielded significant increase in total sleep time. Cross-cohort comparison yielded improvement in sleep quality, insomnia, life satisfaction, and psychological distress. Longitudinal data suggested that the longer the additional sleep time, the better was sleep quality, day-time functioning, and subjective wellbeing.
Source: Journal of Adolescence - Category: Child Development Source Type: research