DreamSync - AI Sleep Coach

DreamSync is the sleep optimization app that puts your privacy first. Everything runs on your phone — no cloud servers, no accounts, no data ever leaves your device. MEET LUNA — YOUR AI SLEEP COACH Luna is your personal sleep scientist, available 24/7. Ask her anything about sleep, get personalized bedtime recommendations, and receive morning insights about your night — all powered by on-device AI. CLINICAL CBT-I PROGRAM The only sleep app with a full 12-week Cognitive Behavioral Therapy for Insomnia program built in. CBT-I is the gold-standard treatment recommended by the American Academy of Sleep Medicine, shown to improve sleep in up to 80% of people who complete it — without medication. INTELLIGENT SLEEP TRACKING Place your phone on your nightstand and DreamSync tracks your sleep using built-in sensors. Get detailed breakdowns of your sleep stages, efficiency score, and disturbance events including snoring detection. SMART ALARM Wake up feeling refreshed. DreamSync's smart alarm detects your lightest sleep phase and wakes you within your preferred window — no more jarring alarms mid-deep-sleep. BEHAVIOR CORRELATIONS Discover how caffeine, exercise, screen time, stress, and alcohol affect YOUR sleep with personalized correlation insights based on your tracked data. ABSOLUTE PRIVACY DreamSync has no servers. We couldn't see your data even if we wanted to. All your sleep data is stored locally on your device in simple files you can inspect, export, or delete at any time. No account required. No tracking. No ads. Ever. KEY FEATURES: - AI sleep coach with personalized daily guidance - 12-week clinical CBT-I program - Sleep tracking with sleep stage analysis - Smart alarm with gentle wake-up - Sleep score and efficiency tracking - Snoring and disturbance detection - Behavior logging and correlation insights - Sleep trends (7, 30, 90-day views) - Pre-bed journaling with AI reflection - Partner alarm sync via Bluetooth - Data export for healthcare providers - Beautiful dark-mode interface - Works completely offline - No account or sign-up required