Meet Sleevi — your personal sleep and recovery companion for Apple Watch. Sleevi helps you understand how well your body recovers during sleep by analyzing key health metrics such as heart rate, respiratory rate, and wrist temperature (on supported Apple Watch models). Whether you're recovering from an intense workout, managing daily stress, or simply trying to improve your sleep quality, Sleevi provides valuable insights into how your body is performing overnight. Simply wear your Apple Watch while you sleep and let Sleevi do the work. Using data collected throughout the night, Sleevi calculates a personalized recovery score and helps you better understand your readiness, recovery trends, and overall sleep health. Features Recovery score based on overnight health data Sleep duration and sleep trend analysis Advanced recovery algorithms Beautiful charts and visualizations Recovery history and long-term trends Personalized insights to help improve your sleep and recovery Privacy-focused design with all data staying on your device and in Apple Health Requirements A paired Apple Watch is required Wrist temperature requires Apple Watch Series 8, Apple Watch Ultra, or later Sleep Tracking with Apple Watch must be enabled Sleep Focus should be active for at least 4 hours per night for approximately 3 nights to establish a baseline Privacy & Apple Health Sleevi integrates with Apple Health to analyze your existing health and sleep data. To calculate recovery metrics, Sleevi may request read access to: Sleep Heart Rate Resting Heart Rate Respiratory Rate Wrist Temperature (supported Apple Watch models only) Your health data remains private. Sleevi does not collect, store, or transmit your personal health information to external servers. All analysis is performed using data available on your device through Apple Health.