NightWare and Cardiovascular Health in Veterans With PTSD

This study is testing whether a smartwatch app called NightWare can reduce nightmares and improve sleep — and whether better sleep helps protect heart health — in veterans with PTSD. The app detects nightmares and gently vibrates to interrupt them without fully waking you up. **You may be eligible if...** - You are a veteran aged 22 or older with a PTSD diagnosis - You have frequent nightmares that disrupt your sleep - Your resting blood pressure is below 160/100 - Your fasting blood sugar is below 126 mg/dL - You have poor sleep quality (score 6 or higher on a standard sleep test) - You do not drive when drowsy - You can connect a device to WiFi **You may NOT be eligible if...** - You do not have PTSD or do not experience nightmares - Your blood pressure or blood sugar is too high - You drive when feeling sleepy - You cannot use wireless technology Talk to your doctor to see if this trial is right for you.