RecruitingBehavioural interventionI-SLEPT: Integrated Sleep and Life Engagement Program for TransitionsSleep is essential to functional recovery in rehabilitation settings; however, sleep is likely to be disrupted during rehabilitation admissions. Adverse effects of these disruptions do not subside after discharge, leading to additional consequences such as poor physical function. Veterans are particularly impacted by poor sleep and medical complexities that can lead to injuries requiring rehabilitative care to support their recovery. This may be more apparent in older Veteran populations. After discharge, Veterans must re-acclimate to their home environment while facing potential changes in their sleep, life engagement (e.g., pleasant activities, physical function), and health. This study will create the I-SLEPT (Integrated Sleep and Life Engagement Program for Transitions) intervention, which will support Veterans by stabilizing their sleep and by maximizing participation in meaningful activities during a critical and vulnerable period of recovery.