Sleep Apnea Treatment

In your entire life. Jus curious. Im 23 and I can’t remember a single I ever had. Will choose best answer.

I can’t remember the name of the sleeping disorder but the symptons are something like this.

Whilst still asleep, the patient ‘wakes up’ to discover that they are lying in bed unable to move and that someone or somebody is attempting to smother them. They eventually wake up properly.

My friend told me about a sleep disorder that causes nightmares. He used 4 letters to name it, then told me what it stood for, but I can’t remember what it is. I can’t ask him again, and I want to research it. I’ve tried to find it and haven’t been able to find something with an abbreviation. I remember that there was at least 1 “P” in it and possibly 2 (Like P_P_). But I’m not certain…

My friend told me I might have a sleeping disorder, were you like beat yourself in your sleep.
I always wake up with bruises, which I have no idea where they come from.
Is there anything such as this?