Extending weeknight sleep of delayed adolescents using weekend morning bright light and evening time management.

ABSTRACT:

Study objectives

Shift sleep onset earlier and extend school-night sleep duration of adolescents.

Methods

Forty-six adolescents (14.5-17.9 years; 24 females) with habitual short sleep (≤7 h) and late bedtimes (≥23:00) on school nights slept as usual for 2 weeks (baseline). Then, there were three weekends and two sets of five weekdays in between. Circadian phase (Dim Light Melatonin Onset, DLMO) was measured in the laboratory on the first and third weekend. On weekdays, the "Intervention" group gradually advanced school-night bedtime (1 h earlier than baseline during week 1; 2 h earlier than baseline during week 2). Individualized evening time management plans ("Sleep RouTeen") were developed to facilitate earlier bedtimes. On the second weekend, Intervention participants rec

SUBMITTER: Crowley SJ 

PROVIDER: S-EPMC9832518 | biostudies-literature | 2023 Jan

REPOSITORIES: biostudies-literature