Wow, glad someone brought this up. I used to get sleep paralysis all of the time and had no idea what it was. Then I saw a show on Discovery channel or something about it. It used to terrify me when it first started happening; but now it isn't so bad since I know what it is. I think you bring up a good point. I'm not sure whether I'm awake or asleep at that point. I also have friends who get it all the time, but one of them said he was actually thrown around his room or that he sees black figures. From what I remember from that show I saw, it's supposed to be a state between being asleep and being awake. It's interesting to think though that it may be astral or in some way connected to a seperate reality or something. Let me know if you find any evidence towards this.