Sometimes you might need to transfer your sleep data to a new device (bought a new iPhone for example).
Just follow these simple steps:
1. Activate Online Backup on your old device.
2. Let Sleep Cycle sync all your sleep sessions. (You can follow the progress on the "Profile" tab).
3. Once the syncing is done. Log in to your Online backup account on your new phone. The synching should start immediately.
Note: To sync data between different devices you need to have a premium subscription.