Not sure how big your dog is, I have a few suggestions that could help. have the dog sleep on a weewee (puppy training) pad. If the dog goesn't like it, perhaps you could use an old towel or something washable on top of the pad to make it more inviting/comfortable. my other thought is what about a doggie diaper ~ i've had to use one on my terrier with an excitable bladder. if you try the diaper method, don't buy pads in the pet store, use kotex, always etc. pads from the grocery/drug stores. Good luck to you and your dog.