Not too long ago, I bought a heated cat bed for Luna. Her age is really starting to show these days, and she can barely get around as much. We noticed that she was sleeping near the heating vents in the house, basically flattening her whole body against them. Not only does she love the new bed, she hardly ever leaves it. She gets out occasionally if she’s too warm, and lays down literally one foot away next to the cold air return grate.