Dr. Mikel Delgado, Cat Behaviorist and Scientist, gave a presentation, The Science of a Happy Cat, in NYC this past Spring. The presentation was great, but the one thing that stuck out to me was a recommendation she made at the end - if there's one thing you should get for your cat, it's a heated bed. As we're transitioning to cold weather, and your home is on the cooler side, a warm spot for your cat will likely be appreciated as cats prefer warmer temperatures. This picture is of Maya in a Toasty Cat. It's not heated, but it's plush and cozy. I attached it with Velcro to the top of a bookshelf.