Improving Sleep, Decision-Making, and Eating in Adolescents with Obesity

In this study, the investigators will develop, refine, and test a 16-session group-based lifestyle modification intervention for adolescents with overweight and obesity augmented with a sleep intervention. The investigators will develop the manual and pilot the intervention in an initial set of adolescents (n=10). The investigators will collect feedback from adolescents, parents, and clinicians, which will inform manual refinements. The investigators will complete an open trial (n=40) of the refined manual. For both phases, the investigators will recruit adolescents (ages 14-18) with overweight or obesity who endorse at least 1 type of sleep disturbance (i.e., too little, poor quality, poorly timed, or inconsistent sleep). Assessments of sleep, decision-making, problematic eating behaviors, energy intake, and weight will occur at baseline (week 0), mid-intervention (week 8) and post-intervention (week 16).