Never imagined the CD but then once bought, it regrets however. The ocean sounds are nice and relaxing, the music starts but quite abruptly without having to gradually develop. The result is not really a harmonious unit. In addition to theme repeated over and over again, what in the long run annoying when pure Listen (hm, I've yet heard ... in couple of times). And so the CD as background music is fine, to support the entry or transit sleep process I find it not suitable.