Wow, I've only had one episode similar to that. In the dream I somehow possessed the body of the devil
who happened to be a goat about to be sacrificed. So from my point of view I was on a slab of stone about to be killed. As soon as I "possessed" his body I started breathing rapidly and I was completely overcome with fear. I woke up a few seconds later like in the movies, breathing hard 
Something very similar happened to my friend one night. We were all asleep in my back room most of us were asleep me and another one of my friends were still awake as we both have trouble sleeping. All of a sudden we start to hear my friend sleep talk. It was a mumble at first it progressively got louder and louder and his voice more distorted. He sounded really croaky and started talking about the devil. I can still remember quite distinctly most of the shit he said. It went something like this;
"666 the devils number, a mark of the beast. 666 the devils number, a mark of the beast. 666 the devils number, a mark of the beast. 666 the devils number, a mark of the beast. 666 the devils number, a mark of the beast. 666 the devils number, a mark of the beast. (Yes he repeated 6 times) This is the mark of me for I am the beast. Jesus died in vain for here I am and you are all going to die. Crucified all will be. Curcified on the 9th day - the day of judgement you will. Prepare for Armageddon. You, your family, your home, everything you know will perish in one foul swipe. The beast has spoken.."
Then he woke up and said what the fuck..
When I sleep really early, or am on a weird sleeping schedule, I tend to get sleep paralysis.
Once, I woke up, but I found myself in a different room. I tried to turn on the lights with my hand, but they wouldn't turn on. My body wouldn't move, and I realized that I was paralyzed. I looked forward and saw a black haze/figure on top of my body. Instead of closing my eyes and trying to sleep, I fought against it by swearing at it, calling it a demon etc. I struggled really hard to get up, and push through it, and I actually did. I punched at it and forced my body at it. Then I woke up. It was scary at first, but cool to know I got through it.
This same thing happened to me although I didn't break free I saw 3 fingers cover my eyes and I lost all aggression, I was extremely aggressive, mum and dad burst into my room at which time I stopped and fell dead asleep. I was yelling out stop it or I will fucking kill you and all this shit. I was banging loudly on the wall. Mind you I had 2 hours sleep that night so I don't think it was anything unusual just sleep paralysis. My pop gets into deep conversations in his sleep. Some calm, some aggressive. Maybe it's something genetic?