Attacked In Sleep

First let me tell you I used to be a complete skeptic and had no reason or desire to believe in demons.

Our (my wife and I) issues all started about a year ago and started with my wife. She would tell me she was attacked by a demon in her sleep. I wrote her off as PMS'ing or just weird, that was until I experienced it.

I was sleeping in our guest room as I was sick. I was half asleep when out of nowhere I felt and saw from the corner of my eye my blanket raise up and thin down, as if a gust of wind had caught it. I immediately felt a presence. Not only did I feel a presence I was paralyzed. I couldn't move or talk. I tried to yell but couldn't. This lasted what seemed like 5 or so minutes but I really don't know how long it was. I felt something, not a hand but felt more like a tail or long finger go over my back and butt.

I don't know how I knew to do this but I started trying to yell out gods name (Jehovah). At first I couldn't get it out, but then I started to get the name out, but it wasn't my voice, it was like a raspy ugly monster like voice. I kept saying gods name and after a few seconds it was my voice and the experience was over.

This has happened to me 4 times since and one episode of being walked through to another room (I don't sleep walk, never have). If anyone knows what I can do to stop this or why this is happening, please let me know.