Accelerated Treatment for Co-occurring Insomnia, Nightmares, and PTSD

The aims of the study are: 1. Determine the efficacy of accelerated cognitive behavioral therapy for insomnia and nightmares (CBTi+n) integrated with Written Exposure Therapy (WET) for PTSD for improving insomnia symptoms among military personnel with clinically significant symptoms of insomnia, nightmares, and PTSD. 2. Determine the efficacy of accelerated CBTi+n integrated with WET for improving nightmare symptoms among military personnel with clinically significant symptoms of insomnia, nightmares, and PTSD. Exploratory Aim: Determine the efficacy of accelerated CBTi+n integrated with WET for improving PTSD symptoms among military personnel with clinically significant symptoms of insomnia, nightmares, and PTSD.