Heres My experience. I remember having some very vivid dreams, then. I drempt, I could see myself in my sleep, it was sort of out of body, then I could see, what i can only describe as looking something like the black smoke out of lost being in my room, it felt like there was a presence, it wrapped itself around me, and It felt like there was a weight on my chest. I also remember the same night having waking up numerous times after short dreams, except I wasnt certain I was awake, I couldnt move, or open my eyes, and my breathing felt restricted, I assumed it was still part of a dream, so relaxed and waited to wake up,
The whole night was a very odd expereice, so much so in the morning I got googling, came across sleep paralysis, and its description seemed to fit what had happend to me perfectly,
Ive since had it where I couldnt move or open my eyes shortly after ive woken up, but ive not had any more hallucination like vivid dreams.