So I woke up really early this morning (it was still dark when I woke up) and I was trying to go back to sleep when I suddenly feel like something is over me watching me trying to go back to sleep so I wake up and look behind me but nothing's there. The weird part is this has happened to me before many times and stop over 2 week ago and started happening again. It for some reason only happens when I'm trying to sleep in my room alone or when everyone else in my house is asleep and when it does happen I always get this weird image in my head of a creature with a kind of eggplant shaped head (it's the best way I can describe the head) with short black hairs on the side of its face and it has a long black body with my feet at the end of its leg and five long fingers, I've also felt it touch me before, it would usually run its hand on my head or down my neck. it's been happening since I was 7 or 8 years old and I don't know if its my brain messing with me or not. Does anyone know why this is happening?