I assume you have your own bedroom, so what the hell are your parents even doing being in the same room? Are they watching you sleep? Are they coming into your room to take something of yours? Maybe they deserve what you said then because that is CREEPY.

Next time, ask for proof. You never know if there's something ulterior here...

Are your parents the type that don't let their kids do kid things? Maybe they are grounding you so you cant "rebel" against them. Even if you are talking in your sleep, that's not something they should be able to hear unless they are watching you sleep. If I were you, I'd set up some kind of recording so you can hear what is worth being grounded over.

Sleep with duct tape over your mouth. Problem solved.

Doesn't sound like a scam at all.

You should either consult a sleep specialist or invest in a ladder to climb out your window and sneak out at night.

Maybe you should think about reconsidering that exorcism.

Why are they paying attention to what you do when you're sleeping? And they do know you can't help what you say when you sleep, right?

WOW. It sounds like your parents are standing over your bed while you sleep. That's pretty disturbing. If you're old enough to move out, RUN FOR THE HILLS!!

Duct tape, my friend.