If a cat suddenly and frequently burrows into the blankets, it may be seeking a sense of security, as cats have an innate instinct to do so. In the wild, they seek out small, enclosed spaces to escape danger. Therefore, at home, blankets provide a similar safe environment, making the cat feel secure and relaxed.

In addition, it could be due to the cat's curiosity. Cats are naturally curious about their surroundings, and the dark environment under the covers might pique their curiosity, prompting them to explore and play. However, if your cat frequently burrows under the covers and exhibits discomfort or unusual behavior, please consult a veterinarian promptly to ensure your cat's health.