You set up a classic or smart alarm but weren't woken up. Several reasons may explain this :
- The alarm was not set with a sufficient volume. Ensure you set the volume right when you parameter your night on "SLEEP" section.
- You woke up before the alarm goes on, which stoped your sleep session.
- Your sleep session was not set in a proper way. Please make sure you visit our dedicated article "Start a sleep session".
- The headband ran out of battery before the alarm sounded.