Why do cats knead blankets?

Cats knead blankets because the motion comes from kittenhood, when tiny cats pressed their mother while feeding. Grown cats often repeat it on soft, warm things when they feel calm and secure. Your blanket, sweater, or lap can remind their body of that early comfort.

There is also a scent message tucked into those paws. Cats have glands in their foot pads, so pressing and stretching can mark a favorite spot as familiar. The claws are usually not a warning; they are more like overenthusiastic toes during a very relaxed moment.