From Julius on 2015/08/03 19:15:35 +0000
If you choose an Internet radio to play as your wake up sound then if for whatever reason the connection to the Internet radio fails an backup wake up sound is played (I mean one which you can choose yourself)
Copied from original feature request: http://urbandroid.uservoice.com/forums/264867-sleep-as-android/suggestions/9153409-backup-alarm-sound