Your screen never goes off

If your screen never goes off, you can check "Auto-Lock" setting:

On iOS:

1. Go to Settings on your phone.
2. Tap on Display & Brightness.
3. Tap on Auto-Lock.
4. If the Never option is enabled, tap on another timing you prefer.

On Android:

1. Go to Settings on your phone.
2. Tap on Display.
3. Tap on Screen Timeout.
4. Choose the limit you want or if the Never option is enabled, tap on another timing you prefer.