Improving Sleep Health and Circadian Timing to Support Cardiometabolic Health in Adolescents

Many teenagers get too little and late timed sleep. High body weight and diabetes are increasing in teenagers as well. This study plans to learn more about whether improving sleep habits can help improve how the body regulates blood sugar and energy use in teenagers who have higher body weight. To answer this question, the investigators plan to enroll teenagers who get \<7 hours of sleep on school nights and measure changes in blood sugars and energy use after two weeks of typical sleep (sleeping on their normal school schedule) and two weeks of a sleep intervention that includes spending longer time in bed at night, melatonin, and morning light.

NCT Number	NCT07618117
Lead Sponsor	University of Colorado, Denver Collaborators: National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
Conditions	Overweight Adolescents, Sleep, Insulin Sensitivity
Enrollment	60 participants
Start Date	2026-08-25
Primary Completion	2030-06-15 (estimated)
Study Completion	2030-08-30 (estimated)
Updated on ClinicalTrials.gov	2026-06-01