Kitties sleeping noises?

Today, as Ninners slept on her usual office chair, she let out a growl. I know she was sleeping. She started to twitch. It was so funny I had to laugh! She growls sometimes when she is pissed at one thing or another, especially loud noises or if you wake her up! Josephine also "talks" in her sleep. She lets out little "chirps". I've also heard her cry out as if someone had her by the tail. Does anyone elses cat do that?

Ophelia squeaks and moans in her sleep, especially when she shifts positions. It is so cute!

Squirrel is very vocal when she is asleep and when she grooms herself. She sometimes grunts like the pot-bellied pig we used to take care of!

Sometimes Snowball starts making little sucking sounds when he's sleeping. These noises can get kind of loud, and he usually wakes up really fast when he's doing this.

My tom cat does sometimes talk in his sleep.