I wasn't sure that anyone else had something like this going on. When my daughter (who will be 5 in a week) was a month old, she received a baby blanket/quilt. Ever since then, she's slept on and with this little blanket. It started out as "Gammie" when she could barely talk, then to the proper "Blankie". Over time, this blanket has been severely loved, as you can imagine. She slept with it, played with it, sat on it, wrapped up in it, dragged it along everywhere. That thing was stained and smelly (to me), but she loved her Blankie, just the same. One thing I noticed is that she would smell it. I thought that was very strange, but it seemed to soothe her just to be able to smell it. As you can imagine, the blanket eventually wore out until it finally disintegrated. Now, she has a pillow that she carries around and she does the same thing with it. She didn't like when we washed the blanket and she doesn't like when we wash her pillow. She says it doesn't smell right when it's clean. I guess only she would know what that means. We do wash the pillow once a week and she hates it, but she just kinda drags it around and lays on it until it smells the way it should, to her. She understands why we have to wash it, but likes it better all "loved up", as we call it. Your daughter is too young to understand why you're taking the smell away, but she'll learn. I would say, wash the bumper pad once a week and, in the meantime, if she wakes up smelly, keep a washcloth with a tiny amount of soap handy to wipe her head and face with, when she wakes up. It'll serve 2 purposes.. to clean the smell off her and to wake her up so she'll be nice and fresh. I don't think the bumper pad is going to do any damage. It comforts her, it soothes her. It's not causing her any harm. I say, let her have her bumper pad.