Encounter with a Shadow Entity

I had a weird experience. I got up to use the restroom and when I went back to bed and started to fall asleep in my mind I saw this shadow type man walking by me. He didnt pay much attention to me, it was like he knew where he was going and didnt hesitate. I couldnt see his face, he wore a hat a a long black trenchcoat. As he passed me it was like half his body went through half of mine on the left side! I was really scared and I tried to call out to my roomates who were sleeping close by, but when I tried to call them nothing came out, all I could get out was air. It didnt last long, maybe about half a minute. It was so strange…..it creeps me out just thinking about it.