Have you ever woken up in the middle of the night, yeah that's your body trying to tell you that’s your body trying to tell that you are being watched. If you want you can investigate or just stay under your blanket and play angry birds on your phone, but i advise you to stay in your bed and call out, if nothing responds then then get a crowbar and a flashlight and investigate. When you are done then you can go back to sleep youtube aware something could be with you so make sure not to have your body parts hanging off the side of the bed also keep your outside lights on and your door closed and your room lights on and your door locked just for good measure throw a crowbar under your bed.