My Cat Keeps Pissing On Soft Cloths

Hello everyone, I have a one year old cat (Female) that loves to piss on my comforter and I can’t afford to keep washing it with every incident. And yes, the vet said it was nothing. I’m not sure why but when I switch the blanket to a fur one she’s able to use the litter to piss. She knows where to poop. I’m just so confused on how to stop this. Shes only allowed in my room, and the litter box is always accessible to her. I clean it every day as well. It has only started again recently, at least within the last weeks. It wasn’t a problem until I switched to pine litter, and mid-way it started happening. I went back to the regular litter and it’s still happening.