I don't personally use this product, but my parents do. My dad was in the hospital and they used something like this for his daily baths. When I found these they were very happy. They like them very much.
Small enough to fit into an overnight bag the sheets fold out to a good size. I was impressed that after opening the pads didn't go dry and kept the moistness. And no, you don't have to rinse, the moistness evaporates (?) quickly.