Second this suggestion, so it's not too OP. It doesn't need to degrade too fast. Other thought might be to have a cleaner clean this mat periodically, just like you have to with mats IRL. That is another way to make this useful, with it being too useful.

Edit: Like an idiot, I commented before using the mod. Looks like the mats do end up having a ton of dirt on them, instead of that dirt getting all over the place. I haven't paid a ton of attention to how much this affects room impressiveness, but so far it looks like this is sufficient balance. I get a little benefit for a little effort to grow cotton and build these. They are not as OP as I was concerned they'd be. So I've changed my opinion - I think it's fine if they don't degrade.

I like the idea o having to clean them but degrading is ugh... but it makes sense and would be balanced i think. My suggestion on this topic: slowing down whoever walks over them. I mean people don't wipe their feet by walking normally right? :D

Is there a particular reason that the LT_DoorMatLeather and LT_DoorMatBigLeather type mats are limited to only to the 'Leathery' stuff category (other than their nameing)?
If not, would it be at all possible to have 'Fabric' type added to the stuffCategories list, thus matching the materials the armchair and pet bed can be made of (hyperweave, muffalo wool,and the like)?