I had a blind 20+ year old cat. We washed his bed b/c it was full of hair and who knows what else. He refused to sit in it for days on end. I thought b/c he went for it when it was in the washer he forgot it wasn't there. He also was getting forgetful. So, I take him over and put him in the bed and he would pop right out. Then after a few days, the smells must've mellowed, he climbed back in. Miss that cat.