Woolite puts out a Pet Stain & odor remover + OXY. You can get it in a spray bottle at the supermarket. Spray the area and let it soak in for five minutes. Then use your wet/dry vacuum to pull all the pee out. I did this on a leather chair the cat pee'd on. She had a kidney infection. It should get it out of the foam also, once it soaks through the covering material. Worked on the chair, no smell, plus for home use, it leaves behind, a "pherobloc which discourages resoiling". That's off the bottle.