One of my pet bed warmers quit last night, and I found a replacement at the best price I have ever seen, 11.99. These are so loved by all my cats, ferals and house cats alike. They are in use constantly, and I think the best present you could give to your cat, especially the older ones, and would help keep them happier and healthier for a little longer. It is sold on Amazon, by Amazon,comLLC , and is called K & H Manufacturing Pet Bed Warmer Tan. It is 8.5 x9.5 inches and 4 watts. Just slip it under their bedding and it warms to 102 degrees, Check it out!