I recently remembered that my stereo has a alarm feature where you can have a predetermined cd or radio station or random songs played to wake you up. But I also think there is an adjustable shut off timer…
I used to use this one cd to wake up in the morning while I was in high school and I remember being able to hear it in my dreams and say to myself “hey thats my cd playing, it must be time to wake up.” If you haven’t already guessed, I’m thinking about using this to become lucid during the REM cycle. Just find a cd that is quiet and agreeable, adjust the volume so it doesn’t startle you awake, then set the alarm to trigger some time in the middle of the night and turn off soon after (1-2 min, just long enough for you to notice it but not long enough for the music to be a major distraction). Who knows, it might just be crazy enough to work… 