So, we have been using a white noise CD for naps and overnight but my husband has started asking about turning it down or even off at night since the house is quiet. He is concerned our LO will become "addicted" to it and need it to sleep and because he isn't sure what it's doing to his hearing or brain. I am starting to research since I don't know either, and wondered if any of you had done some research already. We have it about 6 feet from his head and at a pretty low to medium level. Thanks!