If you have carefully observed cats sleeping, you will definitely find that cats will turn over, cross their legs in the air and even twitch twice when they sleep, which is exactly the same as human dreams. Was the cat dreaming?
According to the latest scientific research, cats do dream, and their sleep can be divided into two types: rapid eye movement and non-rapid eye movement. Rapid eye movement sleep is also called heterogeneous sleep. Cats dream at this stage of sleep, which is usually manifested by the shaking of limbs and beards. Some cats bark twice occasionally. Although cats' eyes are closed at this time, you can see that their eyeballs can move quickly.
Researchers say that cats spend about 30% of their sleep time in REM sleep and 70% in non-REM sleep. In the non-REM sleep stage, the brain activity is minimized and the cat's body can be completely relieved. After entering the non-rapid eye movement sleep stage, we can't see the movement of cats' eyes, and they rarely dream. What we can see is that the cat's body is descending with breathing.
For many cat friends, watching cats sleep is very interesting. When the cat's legs are paddling in the air, you can imagine that the cat is being chased by a monster. It is running for its life. When the cat wriggles gently, you can think that it is enjoying a comfortable massage in its dream. However, no matter how happy cats make you, you'd better not wake them, lest they wake up angry!