the worst nightmare i had was i had a black shadow like creature jump on my face, as i lay in my room on my bed. i couldnt breathe, i was fighting with it, fell out of bed, made it to my door, came ot of my room and into hallway. my parents came out to see what all the noise was. it disappeared. eventually went back to bed, it came back, and i struggled with it again. then when i woke up, i was under the covers, and could not breathe... was quite disturbing