I bought the waterproof bed pads because they were larger than the other pads that I had looked at and because of the great price. I needed a large pad to cover the part of my bed where my daughter’s older dog loved to lay on. And I also needed a large pad to place on my couch where my potty-training grandson took his naps. The pads save me from having to wash and clean my bedclothes, my bed and my couch. I just throw the pads in the wash and after they are dried I put them back on the places that need protection.