This is common for lots of people but yet a lot of people have not yet experienced it, but it should happen at least once in everybody’s lifetime.
If you don’t know what it is this is the best I can explain it.
When your trying to sleep and you feel like a force holding you down and your kind of half awake half asleep. You cannot move your body but your mind is awake. While in this people can have lucid dreams and hallucinate really frightening things happening, and everyone that has this has the same problem. They cannot scream. This is one of the reasons why a some people believe they are being abducted or aliens exist because the dream that they’re in feels so real. A lot of people have dreams of devils and witches and scary things in general chasing them or getting up in there face and it scares the living s*** out of most people.
IN my case, I get this VERY often at least 2-4 times a week depending on my sleeping pattern, but i’ve never had a really scary one like others. You can have an OBE ( Out of body experience ) which makes you feel like you can go anywhere and can travel to outer space ( sounds really weird I know ). I’ve had OBE’s before and they all seem so real but before actually reading into it I never thought much of it, because I know I didn’t go to some random planet while sleeping.
Another problem that a lot of people have are waking up. When you are in sleeping paralysis, you can still hear things from the outside and it can freak the hell out of you depending on the noise. What happens to me a lot is that I have a dream that im sleeping inside a dream. So when I wake up in that dream I think im awake until I find out im still sleeping and the feeling to push to actually wake up in the real world is actually kind of hard mentally. You really gotta concentrate to wake up and when you try to hard again you’ll think you wake up then stop concentrating just to realize your still sleeping.
I’ve never felt an evil presence or anything that actually scared me to a point that I couldn’t fall back asleep. This happens to me when say I wake up early int he morning on a weekend. Go back to sleep about 15 minutes later then it will happen, and you can feel it happening but even if you fight it, and try to sleep normally it will come back. it can happen when you over sleep and try force yourself to sleep. When your really stressed out or anxious it can happen. This only happens when I sleep on my back and I can sort of control when im going in and out of it since its been happening all my life, its not really a problem since everything in the dream and physically hurt you, but it will brainfuck you in the middle of the night. My mom had the same thing happen to her many times too as a child and still happens to her sometimes now. So since it happened to her really frequently im not suprised it happens to me often as well.
tl;dr- scary sheep.