Cat sleep

cats sleep anywhere from 13 to 16 hours per day. In other words, your friendly companion feline spends approximately 2/3 of his entire life in dreamland.Cats are the undisputed sleep champions of the animal kingdom. Only the notoriously slow-footed sloth, which sleeps away an estimated 80 percent of its life, catches more shut-eye.
Cats sleep more than almost any other mammal. Realistically, your cat sleeps about twice as much as you do. How much an individual cat sleeps depends on his age, hunger, the temperature and the weather. Like humans, cats go through both Rapid Eye Movement (REM) and non-REM sleep. Although no one can actually ask a cat, the assumption is that your cat dreams during REM sleep. You may notice his whiskers twitch or his eye moving behind his eyelids. The deep non-REM sleep is when the cat's body grows and repairs itself.

Most cats, particularly house cats, do a lot of their sleeping at night. People who have cats that wake them up in the middle of the night often say their cat is "nocturnal" although that's not technically true. Cats are "crepuscular," which means they are most active at dawn and dusk. They do their hunting at these times because their prey is most active. During the heat of the day, the cat is asleep. Although they have good night vision, cats can't see in complete darkness, so they tend to sleep then as well.