How to Remove Pee Stains (and Smell!) From a Mattress http://www.hometalk.com/8078385/how-to-remove-pee-stains-and-smell-from-a-mattress?se=fol_new-20161106-1&date=20161106&slg=02185301d5abcdb46cdb1d597d56797f-1110481
This WORKS, I used it and my mattress looks brand new! We don't have ceiling fans I used a small fan and say it on the mattress to air dry! It even took the smell out! How to Clean Pee out of a Mattress
Removing pet stains - Pour enough vinegar to soak the stain and THEN add a small amount of baking soda. Let the spot dry for a day or two before sweeping up and then vacuuming. Cover the spot with a bowl or plate to avoid stepping on it.