Unsleep It also comes with a belt to prevent rolling over. I used it for about 2 to 5 months. It suited my child very well, and I used it for both naps and nighttime sleep, so it was used frequently and shows signs of wear overall. I used it in the summer, so I washed it many times, and there are also some stains. Please purchase only if you understand that this is a used item and are interested in trying it out.