At least twice a week this happens to me. Although its usually a tall man, kind of like that hat man but with a sombrero (I assume because I'm of hispanic descent), and a short midget appearing figure with a tall top hat. Perhaps he just appears to resemble a midget in stature due to the very tall nature of the sombrero wearing shadow figure. In the beginning I was too afraid to keep my eyes open, but over time I began to call out, never receiving an answer. I have no idea what they are and sometimes question if I am possessed by a demon. I'm hoping that when I leave for college in a couple of weeks they will no longer appear since I will be in a dorm room and not sleeping alone.