why do cats cover their eyes when they sleep

Cats cover their eyes when they sleep for several reasons: to block out light for better sleep, to create a sense of security by protecting their vulnerable face area, to keep warm by preserving body heat around their nose, and for comfort. This behavior helps cats feel safe, cozy, and less exposed, allowing them to rest more deeply even in bright or noisy environments. Additionally, it can be an instinctual survival tactic stemming from their wild ancestors who needed to stay alert to threats while resting.