Ebbie, My kitty was 20 & a half when she went to kitty heaven a year back. Her longhair coat was quite matted, but she hated grooming so much that I didn't force it on her too much as it made her so mad. I gave her kitty vitamins she licked out of the tube every day all her life. I think that's one reason she lived so long. Her name, believe it or don't was "Sis" which was short for "Persistence." Yes, really.