To change your alarm ringtone from either Sleep Time Free or Sleep Time+, tap on the Profile settings indicated by the three horizontal bars icon at the bottom right hand corner of the screen.
If you are not logged into an Azumio account, simply tap "Remind Me Later" to reveal the settings screen. Tap into the option for "Sleep Settings" and you should see options to adjust both the alarm volume and the ringtone.
If you are not logged into an Azumio account, simply tap "Remind Me Later" to reveal the settings screen. Tap into the option for "Sleep Settings" and you should see options to adjust both the alarm volume and the ringtone.