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Later start, longer sleep

Page history last edited by Dolores Skowronek 3 years, 4 months ago

Temkin, D. A., Princiotta, D., Ryberg, R., & Lewin, D. S. (2018). Later start, longer sleep: Implications of middle school start times. Journal of School Health, 88(5), 370-378. https://doi.org/10.1111/josh.12622

More information

Abstract
Background
Although adolescents generally get less than the recommended 9 hours of sleep per night, research and effort to delay school start times have generally focused on high schools. This study assesses the relation between school start times and sleep in middle school students while accounting for potentially confounding demographic variables.

Methods
Seventh and eighth grade students attending 8 late starting schools (∼8:00 am, n = 630) and 3 early starting schools (∼7:23 am, n = 343) from a diverse suburban school district completed online surveys about their sleep behaviors. Doubly robust inverse probability of treatment weighted regression estimates of the effects of later school start time on student bedtimes, sleep duration, and daytime sleepiness were generated.

Results
Attending a school starting 37 minutes later was associated with an average of 17 additional minutes of sleep per weeknight, despite an average bedtime 15 minutes later. Students attending late starting schools were less sleepy than their counterparts in early starting schools, and more likely to be wide awake.

Conclusions
Later school start times were significantly associated with improved sleep outcomes for early adolescents, providing support for the movement to delay school start times for middle schools.

Keywords
Middle school children's health; school start times; sleep; youth sleep

 

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