Cats curling up into a ball when sleeping may be for warmth, protection, comfort, or sleeping habits. It is a common sleeping position for cats, so don’t worry; if the cat is shivering, Then it is possible that the cat is infected with cold, and it is necessary to keep the cat warm to prevent the cat from catching a cold. Cats sleep in many positions, so as long as your cat is healthy, you don’t have to worry.
