Remote Study of NightWare for PTSD With Nightmares

Inclusion Criteria * Self report of diagnosis with PTSD * Self-report of PTSD-related repetitive nightmares contributing to disrupted sleep. * Equal to or older than 18 years of age. * Proficient in both reading and writing in the English language. * Pittsburgh Sleep Quality Index (PSQI) score equal to or greater than 10. * ESS: On question #8 any score above "0" will prompt an additional question: * Do you drive ("get behind the wheel") when you are drowsy? Answer must be "No" to be enrolled in the study for safety. * Participant owns or has access to devices appropriate for participation in the study including compatible Apple Watch and Apple iPhone. * Wireless Internet and two power outlets where they sleep. * Willingness not to use any other application which collects heart rate data on the phone and watch that is used for NightWare. Exclusion Criteria * Circadian rhythm disruption on a regular basis (shift-work) * Concurrent presence of prohibited medications * Current use of varenicline * Current use of beta-blockers (unless ophthalmic solutions) * Current use of non-dihydropyridines * Current use of Prazosin for the treatment of nightmares (can include subjects 2 weeks post-taper and discontinuation) * Concurrent presence of prohibited diagnoses * Known diagnosis of OSA * Diagnosis of an active disorder of arousal from non-rapid eye movement sleep * Diagnosis of rapid eye movement sleep behavior disorder * Diagnosis of narcolepsy * Diagnosis of dementia * Uncontroll…