I actually did. I had the worst nightmare I've had in a long time and all I remember is I felt I could NOT wake up. I felt I was being dragged INTO the mattress AKA Freddy Krueger style and I was shouting for my friend Michael to rescue me and he didn't! To make matters worse, I actually FELT someone's weight crawl on the bed and into bed beside me. Prior to the horror of being sucked into the mattress, I'd been having a lovely Linda Gray dream and in my dream like state, thought she was getting into the bed, which of course I was ok with. I rarely have nightmares but this woke me at 2.45 in the morning and I actually ran for the light switch - and looked under the bed.