I had one one night, and it freaked me out pretty bad for a month.
I woke up in bed, and looked at the clock on my nightstand. It said 2:00 am exactly. I got out of bed to get a glass of water, and when I turned back to my bed, I could see myself still lying in it. I thought I was dreaming, and shook myself awake. When I woke up, the clock said 4:00 am on the dot. I got up, turned on the light, and once again I was still in bed. I woke up again, and then I could feel myself being pulled toward the window, and I was freaking out by this point. Next time I woke up, it was almost 7 am, and I just lay in bed until my alarm went off.
Anyone else ever have one?