What is freaking me out is the fact that one of my cats, years ago, slept like this all the time and it’s just too weird to see another cat doing it! Tigger slept like that on a giant solar heater unit that would get too hot to touch, her head flat against the base, broiling her little brain until she would get so toasted (literally) that she would stagger-walk for an hour after a heat-nap-headstand. I finally made her a bunch of little knit hats (both to keep her head warm AND to try and keep her from more brain damage) and she stopped – but if it wasn’t the heat desire making her do it… why do they sleep like that?