- Automatic sleep tracking using Apple Watch or manual mode using iPhone or iPad
- Sleep cycle and heart rate analysis based on the latest scientific findings in sleep research
- Detailed sleep stage diagram (Awake, REM, Light Sleep, Deep Sleep) and sleep score
- Audio recordings of snoring, sleep apnea, and sleep talking (not available in automatic sleep tracking mode)
- Optimal bedtime analysis based on sleep cycles
- Personalized insights and sleep tips
- Sleep trends with Week, Month, Year, and All Time overviews
- Backup and synchronization of sleep data and audio recordings between devices
- Alarm presets and naps with customizable settings
- Mood and notes tracking to discover how notes affect sleep quality
- Sleep aid melodies and wake-up sounds, including tracks from Apple Music or iTunes
- Siri Wind Down support
- Premium features include unlimited sleep history and analysis, heart rate analysis, sound recordings, nap modes, full access to all sleep aid content, and data export in CSV format
- Subscription-based with a free trial period and automatic renewal unless canceled 24 hours before the expiration period. Terms and privacy policy available on the app's website.