Sp experiebce

Woke up around 6am on my side, felt weight on top of me, my body was warm. Felt like something hovering over me. Tried to turn and see. Couldn't turn. Saw a black hallucination (no real shape) appear which flickered to white and I heard a pop sound in my ear ( like in a plane). Wasnt that scared, it lasted a few seconds, I am curious about sp's and find them fascinating.