I am 100% in the "no bumpers or blankets in cribs" camp. Simply not worth the risk in my opinion, and I also am one of those who doesn't understand how it's anything but a black and white issue. With my first DS, there were no issues and he still sleeps with nothing in his crib at almost 2 years old (except a small lovey we let him have at 18 months). But my second son is a crazy roller and has been waking up screaming like a crazy person with his legs and arms through the crib slats. It's making sleep training a little tough because I feel like I need to rescue him and roll him out of the slats as it tugs at my heartstrings. I'm thinking about putting a breathable bumper in as a barrier. Any thoughts on the safety of this from your own Mom-research or Mom-intuition?