In winter the cats retreat to their cat tree. It’s angled to be close to the radiator. The female fits neatly on her tray. But the male is more squashed up. He squeezes on but his leg and tail sometimes flop off the edge. His tray is slightly further away from the radiator, bur they have always kept the same positions, they don’t swap. Sometimes if they get too hot they go off in search of different places. Then comes the battle of the armchairs. The cats know which is my hubby’s and like stealing his seat if he goes out of the room….
If I coukd I would shrink down to cat size and curl up on the top tray above the two cats and relax. They don’t use it so it’s free….