K.S.
I.,
I'm a big fan of "white noise"! I used it with all 3 of my kids and not only were they all great sleepers as a result, but I was a lot less stressed out about noise. This translated into a more relaxed mommy and when mom's happy everyone is happy. Even adults feel lousey when their sleep is interrupted and a disrupted sleep cycle can translate into a grumpy baby who has a more difficult time sleeping. As for becoming too dependent on it, I don't think there is any such thing for a 3 mos. old. I have 3 kids (9, 11, & 14) and only one of them still sleeps with white noise. Good luck and happy sleeping for all of you!!;)