There is a call to research suggesting the importance of treatment studies which focus on interventions that integrate nightmare and sleep symptom treatment with evidence-based treatment for PTSD (Nappi et al., 2012). In an effort to respond to this call, we propose to tailor ERRT for use in conjunction with CPT, and preliminarily test ERRT's additive effect to CPT in treating PTSD in community outpatients. We hypothesize that ERRT would increase CPT's treatment efficacy by its specific focus on trauma-related nightmares and sleep disturbances. Sleep difficulties are known to increase tension, and reduce one's ability to cope adaptively (Bonn-Miller, Babson, Vujanovic, & Feldner, 2010; Hofstetter, Lysaker, & Mayeda, 2005; Nishith, Resick, & Mueser, 2001). Thus, with improved sleep an individual may have additional personal coping resources for which s/he can use to address the broader trauma issues (Nappi et al., 2012). To test this integration, we will compare ERRT + CPT, CPT + ERRT, and CPT alone.