Changes in Sleep Duration and Timing During the Middle-to-High School Transition.

ABSTRACT:

Purpose

The purpose of the study was to quantify changes in sleep during the middle-to-high school transition and determine if changes in sleep differ by sociodemographic characteristics.

Methods

Adolescents were enrolled in eighth grade and followed into ninth grade (N = 110; 2,470 nights observed). The outcomes were actigraphy-estimated sleep duration, sleep onset, sleep offset, and sleep sufficiency (≥8 hours of sleep). The exposures were school grade (eighth or ninth), school night status (school or nonschool), sex (female or male), and race (white, black, or other).

Results

On school nights, sleep duration declined by 25.8 minutes per night (p < .001) from eighth to ninth grade. There was no change in sleep duration on nonschool nights. Timing of sleep onset was

SUBMITTER: Mitchell JA 

PROVIDER: S-EPMC7683365 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature