Although the actual changing pad is not very expensive, the cost can really start to count especially if you have to keep replacing. The purpose of using a disguise to simply protect the pads when your baby should be changed.The changing pad cover works very much like a cushion pad as they are designed to slide over the pad to help protect as it is more than likely that your baby will make a mess. The good is that they are designed to be removable.other great feature is that many different colors and styles available.