This sleeper has lots of room in it (too much for our baby!), and takes up a lot of room on the bed too. It doesn't seem like it's made for a bed, the way the legs are so uncomfortable to have next to you. The added sound buttons did nothing for my daughter, so we didn't use them at all after a couple tries. I also would have liked if it had an angled head so she wasn't laying flat. The high sides are good as the baby gets old enough to try moving around but they were a pain for getting the baby out in the middle of the night. The sides let in a lot of air, so that is a plus point for a summer baby, and to prevent overheating.