Walking Palm Felted Wool Cat Cave Bed (UFO) Walking Palm Cat Cave Beds fit all cats up to about 16 lbs. The Cat Cave is a cozy and comfortable cat bed handmade from all natural wool. Each one is made with love with the highest quality wool available to ensure that your cat is happy and healthy. Measurements: width about 18-19 inches - height about 9-10 inches, hole is about 7-8 inches Care: gently hand wash with lukewarm water.