The Haunted Bed

A friend of mine had gotten custody of his daughter, who was about two years old (she's 18 now, so this was about 16 years ago).  He was renting a small house on Harvey's Beach in Old Saybrook.  We pretty much made it a mission that I would help out as much as I could, especially since little Sarah never saw her mother and my friend Gregg really wanted her to have a nurturing female figure in her life.

Many a night I would stay over, usually on weekends, and Gregg would sleep on the couch and I would sleep in his bedroom.  Gregg had this great old bed he had gotten somewhere second-hand, a high boxspring and green metal posts.  This is what happened:  

In the morning, after it got light out, I would wake up but strangely I would not be able to open my eyes.  At the foot of the bed, I would feel a tug at the bedclothes and then the bed would sink a bit, as if a dog or small child had climbed in bed with me.  Then, nothing -- I could not move for many moments.  It was very unsettling.  The image I got was one of impishness more than malevolence.  But something was looking right at me from the foot of this bed.

Of course I wondered if Sarah had gotten in with me, but she was way too small to get on this high, tall bed and she was always sleeping soundly in her room when I was finally able to move, open my eyes and get up and look.  I had never heard of this sort of "paralysis" until it was mentioned the other night...and it makes sense that this is what happened to me.  Was I dreaming?  Nope, unless I was having the same dream over and over again pretty much every morning I slept in that bed.

Did it ever happen to Gregg when he slept there?  Never, which is what is so puzzling.  If something was haunting that bed, why did it only haunt me?  Why was I so convinced that there was an impish grinning associated with this whatever-it-was?

We forgot whatever happened to that green bed.  Gregg doesn't have it any more, and he now lives in Redding.  And I am not a person who sees ghosts -- this whatever-it-was hasn't followed me to where I live now.  But I am still haunted by this experience...can still feel it and see the image.  I am just totally puzzled, and can't get this out of my head.

UPDATE:
It is likely that what this woman was experiencing was a version of sleep paralysis, a phenomenon that happens to millions of people all over the world. But one never knows...do they?