 This VA Rehabilitation Research and Development Career Development Award CDA-2 proposal is designed to significantly advance the application of Behavioral Sleep Medicine practices in the treatment of Veterans seen in the VA Healthcare System, especially those recovering from traumatic brain injury TBI. TBI has been deemed the signature wound of the Iraq and Afghanistan Wars, occurring in about 19.5 of Operation Enduring FreedomOperation Iraqi FreedomOperation New Dawn OEFOIFOND service members. For many Veterans, mild traumatic brain injury mTBI can be associated with persistent post-concussive symptoms, especially sleep disturbances. Sleep disturbances are among the most frequent complaints following mTBI, with studies suggesting that over 93 of Veterans who experienced brain injuries develop chronic sleep problems. Of the sleep disturbances diagnosed in this patient population the most common is insomnia, observed in over 50 of patients. Chronic and untreated insomnia is known to be associated with andor increase risk for psychiatric problems, suicidal ideation, and unhealthy lifestyles e.g., alcoholdrug abuse, lead to poorer physical health, disruption in major social and occupational responsibilities, and decreased quality of life, and may generally contribute to the persistence of post-concussive symptoms beyond the expected period of recovery. As such, treatment of sleep disturbance represents an essential component of Veteran care, one which may be particularly beneficial for Veterans with history of mTBI who commonly present to the clinic with complex multi-symptom concerns. 