I wouldn't worry about the type of batting. According to the latest info from SIDS.org babies should have NOTHING in their beds with them and that includes blankets and bumper pads. I worked with high risk families and several of their babies over the years were suffocated due to blankets and bumper pads. I think baby quilts should all have a warning on the label and the sids.org website. Parents especially grandparents need to be educated. We sure don't want to loose a precious child due to something like this. By the way even tho babies suffocate they still call it sids.