SnuggleSafe Microwave Wireless Heatpad with Fleece Cover

There’s an entire theory of physics that can be extrapolated from one of these – a few minutes in the microwave and they have a near gravitational attraction for cats, moreso that the Apple-branded buttwarmers more typically found in geek homes.

And in the winter you can lose the cover and use it in human beds. Generally the thermal feline-stickation can last for up to six hours.