0677 Impact of Cognitive Behavioral Therapy for Post-trauma Nightmares on Sleep-efficiency: Examining Data on Sleep Diary Data-V45IS1 0677 Impact of Cognitive Behavioral Therapy for Post-trauma Nightmares on Sleep-efficiency: Examining Data on Sleep Diary Data-V45IS1 Download 0676 Increased Depression Symptoms are Associated with Higher Nightmare Frequency within the Wisconsin Sleep Cohort-V45IS1 0678 Slow Wave Sleep Recovery Correlates with Brain Functional and Structural Changes in Alcohol Use Disorder-V45IS1