A waterproof dog bed is highly advisable for an incontinent dog. And, because many dogs need time to get used to a new bed, it is best to introduce it as soon as possible. However, it is also worth noting that a waterproof dog bed does not only have to be for an incontinent dog. Any dog will benefit from a waterproof bed - any dog can have an accident, vomit, or otherwise get their bed wet! So, even if your dog is not incontinent, you might find that your pooch benefits from a higher-quality bed to prevent odor and moisture build-up.