I cant imagine for a second that a dog bed wouldnt be washable - & lets face it, if its soaked in cat pee you've got nothing to lose but to try a couple of things. The alternative is to throw it out & get a new one.
I adore my cats & have tried so many different products to clean cat pee out of various things, the one I swear by is a recipe I mix up myself out of a few household items, it works without fail, everytime & the smell never comes back.
I got the recipe from www.caturineoff.com - if you want to get rid of the cat pee you have to try this. (I'd tell you the recipe, but these people have saved my marriage more than once so they deserve the referal)
Go grab the recipe from www.caturineoff.com - mix up the recipe & soak the sheet in it. this will absolutely do the trick for you. I only ever use this stuff as it has never let me down. I've tried so many other products & they either dont work, or if they do the smell comes back. This stuff is cheap, I make it myself & it works on clothes, furniture & my carpet. ... View related article.
You need to be very careful when using peroxide - it is a bleach & will take color out of fabric, carpet etc. I've tried soooo many products, with no joy at all. The stain & smell comes back. The only think I've found to work is a recipe I got where I mix up a recipe myself when I need it. I found it at www.caturineoff.com - it's brilliant. ... View related article.