I had a nightmare last night: I was asleep in my bed when I felt watched and suddenly I open my eyes and see a shadowy figure standing very close to the right of my bed. He was staring right into my eyes (the only part of his body I could see). After a couple of seconds of staring back at him I start screaming for bloody murder and pull the duvet over my head. I could feel my heart pounding and sweat running down my forehead however for some reasons I knew I was safe under the duvet. In the morning, I woke up with my head under the duvet and I was told that I was actually screaming during the night (and scared my flatmates). what does it mean??