Our cat is a bugger, any chance and she’s up the stairs to wee on a bed. I’ve lost count of how many duvets I’ve thrown out. We normally keep our bedroom doors shut, but every now and then she charges upstairs before we can catch her. I thought mine was shut this evening , obviously not . I had my duvet folded back to let my bed air a bit and she’s wee’d on it . One pillow is ruined, so is the duvet and my mattress is soaked. She’s got a litter tray , so why she chooses the beds I’ve no idea . I really can’t afford a new mattress, how can I get the smell out ?