Randomized clinical trial shows a novel intervention improves sleep duration and circadian timing in adolescents, suggesting potential for better health outcomes.
Key Points
The study aims to evaluate the effectiveness of a novel intervention using chronotherapeutic approaches in improving sleep and circadian timing in adolescents with late sleep.
Conducted a randomized clinical trial involving adolescents aged 16-19 with late sleep onset.
Participants were assigned to an intervention group with personalized sleep scheduling and light therapy or a control group.
Primary outcomes included weeknight sleep duration and circadian timing measured by salivary dim-light melatonin onset.
Participants in the intervention group experienced an earlier circadian timing by 45 minutes at week 2 compared to controls.
Weeknight sleep duration increased by 47 minutes in the intervention group compared to controls.
DLMO-midsleep alignment showed an insignificant reduction in the intervention group relative to control.