Join Date: Dec 2003
Location: Northeastern Ohio
First, take your cat to the vet to be tested for a urinary tract infection. Then wash all of your bedding in some enzyme cleaner like Nature's Miracle. If you don't remove all the smell, the cats will continue to pee on your bedding. Until the behavior gets better, put some plastic between your sheets and your mattress so your mattress doesn't get ruined.
Oh, and you'll need to soak your mattress with the enzyme cleaner, too.