If you have an older relative, why not ask her if she would like a cat?  Older people who own pets tend to live longer independently than a senior who does not have any pets.  Studies also show that a pet can lower our blood pressure and heart rate and even reduce the frequency of a serious illness.  Your older relative may like the idea of owning a cat. It would keep both her mind and body more active.  A cat is easier to care for than a dog. If your relative indicates that she would like one, you may suggest a short haired cat. There is less grooming and less cleaning up to do. Get some cat toys for her to play with the cat in the evening. This is the best way to make sure that both the cat and grandma get a good nights sleep.