Did you play the song on really low volume so you could barely hear it? Cuz i cant sleep as good if i have it turned up a bit,so i have it 2 levels above mute. But one of the cd's is so quiet i cant hear it and the other i can hear so i dont wanna turn it up any more than it is. I havent noticed a single bit of difference from these,i still have a bad kink in my neck that i've had for weeks,and today i even woke up with my left ear completely plugged
