This project will create I-SLEPT (Integrated Sleep and Life Engagement Program for Transitions), a novel intervention to enhance sleep health and life engagement during the transition period following discharge from VA subacute rehabilitation. The development of I-SLEPT will be informed by both Veterans and experts. Including the Veteran perspective is essential to reflect Veterans' choice, ensure access to timely care, and prioritize effective care solutions to improve Veterans' health and well-being. Veterans are more likely to report poor sleep and medical complexities than non-Veterans which may further complicate their readjustment to their home environment after discharge. The proposed study is a single arm clinical trial. Veterans aged 50+ discharged home from the subacute rehabilitation units at VA Boston's Community Living Center will be recruited to complete surveys and interviews informing I-SLEPT creation (Aim 1; N=20), complete a preliminary trial (Aim 2; N=5) or complete a single-arm Proof-of-Concept trial (Aim 3; N=40). Veterans participating in Aims 2 or 3 will complete assessments of sleep health and life engagement, as well as acceptability measures. Results may also inform future work adapting this intervention to other transitional phases (e.g., discharge from acute hospitalization), support Veterans across the lifespan, and support intervention implementation by staff from multiple disciplines and specialties, including nursing, social work, physical therapy, occupational therapy, and Veteran peer specialists.