Wow, that must be really hard to go through. I remember when I was 8 years old something similar happened to me, I don't know if it was sleep paralysis, but I remember being asleep and suddenly opening my eyes, I saw the figure of a sinister man next to my bed and I wanted to run away but I couldn't move, or scream. It was terrible, I could only close my eyes and pray. Then the feeling passed and when I opened my eyes, the figure was no longer there.

Fortunately I have not had another experience like that, but I remember it as if it had happened yesterday.