Don't worry, it's a natural side effect of your brain.
Everyone experiences this.

No I get those hypnic jerks instead where your legs twitch

many a time, but it hasn't happened recently thankfully

Nope, I know my dad's had it a few times - sounds awful.

Nope. My husband has had it happen to him a few times. The first time he said it was a Rottweiler that landed on his chest and growled and barked at him menacingly. The second time he said it felt like a person was on top of him and he was screaming for me to help.

Ooo maybe it was a succubus, wanted to suck your soul out😉😄

It's only happened three times. First time was the scariest. I heard voices talking to eachother in gibberish while something was banging loudly on my door. I was trying to get up and answer it, but my body wouldn't let me. Kinda felt like it was protecting me from something

It's happened to me many times, but I've never seen or felt demons or anything.

Only once, but it was simply frustrating. I'm sorry to hear that

Yes. It's a terrible feeling

Yes, like 10 years ago. That was the scariest experience ive ever had