I had three experiences about six yrs. ago, over a four day period. I had never heard of "Sleep Paralysis" back then;not until recently.
I had just gone to bed, was lying on my right side, still awake thinking over the days'events.
I felt something jump up on the bed behind me ,I thought it was one of my cats...in a few secs. something touched me and I couldn't move, or speak!. I was frozen with fear . I could hear the T.v. in the next room, the people talking, but couldn't call for help! Something was holding on to me . It was as long as my body. I tried to force myself to speak and move but could not. I was desperate I felt that this was an evil thing that I was in danger for my life. I began to pray in my mind, over and over, God help me ! Whatever it was let go when I prayed. Needless to say I got out of that room!