L.R.
I'm sure plenty of moms will disagree, but we never had bumper pads on my daughter's crib. I figured if we weren't going to have quilts or blankets or pillows around a small infant due to the risk of suffocation -- remember, they cannot even turn over or turn away sufficiently yet -- then why would we have a wad of soft, padded material all around the edge of the crib that she could roll into and get her face onto?
I know parents freak about their kids getting an arm or leg stuck through the crib slats. Never happened to us, not once. I would think a new crib that met safety standards would not need a bumper. As for baby whacking his or her head on the slats -- if baby's just rolling into them, the head isn't going to do more than a slight bump. Oh, yeah--and there were the friends who talked about their kids using the bumper as an extra step to help them climb out of the crib once they were pulling up on the sides to stand....
I just think bumper pads are one of those fashionable things parents are told are "must-haves for your newborn's nursery!" that exist mostly for baby stores to make more cash. We were given a bumper pad. We used it to wrap up a non-moveable, structural pole that holds up the ceiling in our basement play area. That was a much better and more necessary use for it!