Health Behavior Intervention for Adults With Type 1 Diabetes

Overview: The investigators will conduct a powered randomized controlled trial (RCT) and recruit a contemporary cohort of 248 young adults with T1D and randomly assign them to one of two conditions: CB-sleep or a time-balanced attention control (enhanced usual care) condition. The study will evaluate the immediate and short-term effects of CB-sleep compared to enhanced usual care on actigraphy and self-report derived sleep health dimensions (aim 1), glycemia and other diabetes self-management outcomes (aim 2), and whether sleep health mediates associations between the CB-sleep and enhanced usual care conditions (aim 3). All participants will complete a battery of validated questionnaires and objective measures of sleep and glycemia captured at baseline to post-intervention (3 months) and at a 6- and 9-month follow-up. Study Design: A two-arm, RCT will be used to evaluate the efficacy of CB-sleep compared to a time-balanced attention control condition (enhanced usual care). Data collection will include T0 baseline measures (questionnaires and 14-days of sleep/glucose monitoring), T1 will include the allocation to the experimental or control condition, T2 will include immediate post baseline measures at 3-months, T3 will include repeating measures at 6-months, and T4 will include repeating measures at 9-months.