I also had a waterbed at one point. I had found a declawed dumped kitty and so she didn't ever do anything to my waterbed. But one time my friend moved in for a while, and her cat had all her claws and my cat and her cat got into a huge cat fight while I was at school. When I got home there were to many holes in the bed. I had to end up sleeping on the couch for a few days due to the cats. My cat was just trying to defend what was rightfuly hers but she didn't have claws or anything so she lost. A few weeks later my friend moved out and my cat got her bed back to her self and me again so she was pretty happy.