This chilling nightmare was submitted by Sara. Sara claims the combination of stress from an exam and sleeping in a different position than usual created this story that may be too scary for a Hollywood script.

A few years ago, while I was in undergrad, I took a nap in the afternoon after I'd stayed up most of the night studying for an exam. I fell asleep on my back, which I don't normally do, and I think because I was in this position, I had an episode of sleep paralysis. I'm not sure if you've ever experienced this, but basically you think you're awake still, even though you've started to fall asleep and dream, and you're aware that can't move your body.

So in this dream, I knew I was lying in my bed, but there was someone with me in the room. I tried to say my roommate Lauren's name, but I couldn't talk or make any noise at all. I heard movement behind me, but I couldn't turn my head to see where the noise was coming from exactly. I tried to call out again to Lauren, and I heard what sounded like Lauren say back to me, "Shh...Lauren's not here. It's just you and me." Then I really started to get scared and tried to get up, but no matter what I did, my body just would not respond to my brain telling it to move. "You need to get up," the voice said to me. I still couldn't see it, and I knew it wasn't Lauren even though it sounded like her. I was really getting freaked out, and I was frustrated trying with all my might to scream, but I still couldn't make any sound at all. I felt trapped inside my body, and wanted desperately to get out of it. I felt completely powerless to do anything. "You need to get up or you'll miss your exam," it said, even though I had already taken the exam, but it was still on my mind and I was still stressed about it.

I started to feel like I was going to panic, because I thought I needed to go take the test. My legs wouldn't move and I tried to calm myself down by taking deep breaths. It suddenly occurred to me that there was something heavy on my chest. I couldn't breathe. That's when I realized that the thing with Lauren's voice was kneeling on my chest, and I finally saw it. It looked like a solid shadow, and it's face was blurred so I couldn't make out what it looked like. I remember thinking if I could just roll over, it would have to get off me. I still heard the movement behind me, so I knew then there were two of them in there with me. For some reason then, I knew they were coming for my soul, and there was nothing I could do to stop them. I was trapped inside my body and I couldn't even cry, even though I wanted to so badly. I kept trying to move and scream, and the thing kept whispering to me until my roommate did finally come back, and the sound of her opening the door finally woke me up.

What's your worst nightmare? Deminski & Doyle want to know. Leave them in the comments below or message us on Facebook by 6 p.m. Wednesday. We'll put them up to a vote, and the winner gets two tickets to the final weekend of Six Flag Great Adventure's Fright Fest, hand-delivered by producer Joe Votruba.

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