There are many people who advise against cot bumpers for babies becuase they restrict airflow. I guess if the baby pressed his/her face right up against the bumper and didn't move, it could be a problem, but we can't get James to sit still (or sleep still) so I really don't think he'd hang out in a position that makes him uncomfortable.

It's been close to impossible for us to find a bumper that goes all the way around the cot (I've located one, and it costs 210 pounds!!!). We are just trying to protect Baby J from bumping his head on the side of the cot (which he has done) and getting his legs stuck through the bars (exhibit A below). He moves around SO much that a bumper that just goes around half of the cot is a total joke. This kid needs the full monty.

Ric's comment on the topic is: "I still don't understand the airflow thing. Do people suffocate who ride around in convertibles with the windows up? Oh lord, open up the windows, I can't breathe with only the top down!"