This app syncs detailed sleep data, including heart rate variability (HRV), from your smart mattress to Apple Health. It provides in-depth nightly analysis and trends over time, integrating seamlessly with other recovery applications.
1.0.2
September 8, 2026
Bug fixes, performance improvements, and behind-the-scenes maintenance
Unlimited automatic syncs + detailed nightly analysis
$49.99
Nocturne Pro – Lifetime
Unlimited automatic syncs for life
Nocturne is a health and fitness app designed to sync detailed sleep data, including heart rate variability (HRV), from your Eight Sleep mattress to Apple Health. It offers in-depth nightly analysis and trend tracking.
No, Nocturne does not contain advertisements. The app is free to start with optional premium features available through subscription.
Nocturne Pro offers monthly ($3.99/P1M), annual ($24.99/P1Y), and lifetime purchase options. Subscriptions automatically renew unless canceled at least 24 hours before the current period ends.
Nocturne exports HRV, heart rate, resting heart rate, respiratory rate, and sleep stages. It offers both a full time series of HRV readings and a computed nightly average.
Yes, Nocturne works with recovery apps like Bevel and Athlytic by making your HRV and sleep stage data available in Apple Health, which these apps then use.
Nocturne is designed for privacy, processing all data on-device before writing to Apple Health. Your credentials are sent directly to your sleep account, and session tokens are stored securely in your device's encrypted Keychain.
The latest version of Nocturne, 1.0.1, was released on August 18, 2026, indicating recent updates. The app is generally updated to ensure compatibility and introduce new features.
Nocturne currently supports iPhone devices. It is designed to integrate with your Eight Sleep mattress data and sync to Apple Health.