I almost always use a pad when I'm wet around the house. Leaks are pretty rare for me but I'd rather not leak on furniture ever. I haven't found any changing pads that I really like since they discontinued my favorite brand. I'm keeping an eye out.
Yes I have bed pads and cotton covered rubber sheeting in bed and when I bought new living room furniture a few years ago I took advantage of ordering the matching IC protection from the manufacturer,it is amazing how much furniture that this is an option for but is never mentioned or ordered because what salesman in the right mind asks "joe public" do you pee on your couch,cause if you do I have an app for that.
If you are wearing a quality diaper with plastic pants while at home, additional protection for the furniture, other than the bed, probably is unnecessary. An exception would be a recliner or easy chair if you nap and tend to bed wet during your nap. For bedwetters, a reusable absorbent pad is recommended for the bed, in addition to the requisite mattress protector.
If you think you may have leaked or wicked onto furniture but are not sure which items or where on the piece of furniture, a black light will cause urine, even old stains, to fluoresce, making it easy to find.:smile: