OLDE KITTEHS

Mystery cat whose muggle name is Amelia is almost 15. She takes her glucosalamine for her joints and she sleeps on this little pad I bought her that conducts extra body heat (she ignores her other cat beds now). She's in reasonably good health but sleeps a lot except early in the morning before I wake up. She's not as good at grooming and doing kitty stuff as she used to be. She will play occasionally if I work at rousing her.

What are some things that are good for old kitties? Our geriatric feline friends? Things that make their life more comfortable