In a book:

Question: "I'm told that my teeth sometimes chatter, my feet paddle, and my eyelids flutter while I'm sleeping. What's happening?"

Answer:

"That is cat dreaming. And cats do it alot. Only when a cat is completely relaxed will he fall into a deep sleep. Electrical activity in the brain changes and the excitement begins. "

"Cats are very intelligent animals, and their brains are constantly taking in tremendous amounts of information. One of the possible reasons for dreaming is that it is the cats way of reclassifying or even getting rid of the build up of unnecessary data in the brain. "

book: 101 questions your cat would ask its vet if your cat could talk. Author: Dr. Bruce Fogle


sounds interesting..