- Check your alert settings:
Go into your phone’s settings, then to the alerts section. - Check your sound:
Make sure your phone is not muted or set to vibrate. - Check the alarm duration:
Make sure the alarm is set to long enough for you to wake up. - Test your alarm:
Set the alarm for a few minutes in the future and check if it rings. - Check the volume:
Make sure the volume is set to a loud enough level to wake you up.