My Weird Sleeping

Please if you know anything let me know. Every time when I fall to sleep, its the same story. Same things. Every night before I actually sleep, when I close my eyes this weird things keep happening to me. I close my eyes and I see really scary faces, or I see eyes and it's so scary that I immediately open my eyes.That's one thing. Another thing is this weird feeling I get. Again when I close my eyes, I feel as if someone is there just watching me and walking around my room... I don't hear nothing just feeling it. But the weirdest thing is, this one. This voice I hear. I hear it every now and then, but not every night. Thank god on this one. The first time I heard it, it said "I am the devil" and then I don't remember what it said. It is a very deep and scary voice. I don't hear it like in my head type thing, it is like in my mind if you know what I am trying to say. Couple of days ago, I heard it again. It was saying some things I don't remember but after a little while I said in my mind "get out of my head" and it said "i am your head" then I asked "do you want my soul?" And I don't remember the answer but I remember it being positive. Oh I forgot to mention that before I heard it, I was thinking about a song I hear where the singer says he spoke to the devil and they said some creepy stuff and I was thinking about that when I heard it myself... I am not sure if it is the devil but. It said so. Also as I said I didn't hear it like from outside or from my room. It was like inside me or something. Any thoughts on what it is? Anyone knows what it is? Please answer it would be very much appreciated. Thank you.