This response is beyond ridiculous. Are you seriously insinuating that she is planning to get a crib bumper so that she can just throw the baby in a crib all day instead of taking care of it?!! The responses in general are crazy, everyone acts like if she gets a bumper she is threatening her childs life just for vanity!! She already said she wanted advice on what bumper not a discussion on whether she should get a bumper or not. I bet if she was planning to put the bumper on a drop side crib people would already be calling CPS on her! Everything in life has a small risk to it, if you do enough research you can find that a small number of babies have been killed by virtually any item out there. To the OP I have no advice on how to make a bumper work on a crib with a flat back but I can tell you I have a 9 & 10 year old who are alive and well despite sleeping in a drop side crib with a bumper. Also I did put them in there sometimes to play quietly alone! I guess it's a wonder that they are alive and seemingly well adjusted given the death wish I had on them as infants