Originally Posted by ReynardMuldrake
That sounds like sleep paralysis. Hallucinations are common in that transitional period between wakefulness and sleep.
Funny you should mention that...a few years ago I was on some pain medications for a pinched nerve, and if I took them too close to bedtime I would get caught in some weird state where my body was asleep, but my mind was awake. It was really freaky, I had to try to wake myself up to snap out of it. I wonder if that's what that was all about.