OK, I admit, I did not read all 15 pages of replies BUT after hearing about the pet sprays, I have to suggest....good old fashioned LYSOL in the red container with the red label. It is a concentrate so you don't use more than a capful but it is the ONLY thing I have found that takes the PEE smell out of bedding and clothing. I have 3 boys and trust me, the stuff from the pet store doesnt' even come close.....
Best of luck and darned kitty............had one who was dying and peed on EVERYTHING...thank heavens for lysol--you may have to ask for it at you local store as not many places carry it anylonger. Good luck!