Lovely cat ! I used to have a 100% black cat like this one... Mr Spock was the name. He was adorable.
Now your question : yes, that's normal, it happens when the sleeper is in the paradoxal sleep time. Many animals share the same sleep phases - among them, cats, dogs and human beings.
Search paradoxal sleep on Wikipedia and you'll find interesting facts. It is also referred to as "rapid eye movement sleep".
posted over a year ago
thanx im just glad shes not spaxing out :) an her names Rooster <3