My elderly cat peed on my leather sofa. I soaked up what I could but unfortunately she did it overnight so it had mostly dissipated by the time I realized what had happened. I see there are a couple similar threads with animal urine on leather but the guidance seems to vary a bit by situation so just want to make sure I understand the best approach to getting the stain out (if possible).

The attached photos are what the couch looks like in a mostly/nearly dried state as well as the underside. It’s definitely a bit stiffer than the rest and when wet, the underside does have that tacky slimy feel I’ve learned here is an indicator the leather is breaking down and returning to rawhide. I can’t remove the leather cover off the cushion fully, as it’s sewn to the cushion in places but I can reach most of the undersides. Any thoughts on the best way to tackle?

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