My DD got a bouncer chair that vibrates for her baby shower. My Dad said he read somewhere that the vibrations will hurt the baby and not to use the vibrating part of it just the music and stuff. Has anyone else heard of this?
My now two year old spent the first 6 months of her life in a vibrating chair. It was the only way to get her to sleep. As far as I can tell - she has suffered no ill effects.