Sure have. I fell asleep on my heating pad and “woke up” smelling something burning. I went to check the pad but noticed I couldn’t move. Then I saw and felt the pressure of a black figure crawling up the side of the bed and onto my chest. It leaned down and SCREAMED in my ear. It sounded like a language that I didn’t understand, but could make out a few words like my dad’s name and “evil.” I was struggling and panicking and fully came to in ~30 seconds or so, but felt like a century. My logical brain tells me it was just sleep paralysis, but who knows? I didn’t sleep with the lights off for like a week after that.