Are there any....er..."sleepologists" who could explain this?

I had an opportunity to visit Seaworld with my girlfriend yesterday and, while there, rode the obligatory roller-coaster a number of times. When it comes to thrill rides, I guess I fall somewhere in between “novice” and “greenhorn,” but it’s not like my roller-coaster virginity was usurped or anything. I’d done it before. The “Great White,” which pretty much hangs you by your armpits and flings you around was a somewhat frightening, but generally uneventful ride. The “Steel Eel,” though, which is the more standard, sit-in-a-car-and-hope-nobody-vomits-on-you-from-behind ride, provided a more visceral scare: apparently designed with the big-boned passenger in mind, the molded plastic restraint allowed for a little more play than was comfortable for me, a whisper-thin lad of 155 pounds. Either I had reached transcendental enlightenment, or the extreme G-forces were causing me to levitate three inches off of my seat. Regardless, I got a few bruises, but was essentially all right.

Anyway, last evening, while trying to sleep, I experienced something quite new to me. I felt as if I were in that limbo between wakefulness and sleep, aligned more towards the side of wakefulness, though, because I was completely consciousness and could hear going-on within my house (and continued to be able to do so throughout the whole thing.) I could FEEL myself on the coaster, could feel the forces acting on my body, and could feel my muscles reacting as such (in other words, it wasn’t strictly a mental thing.) Underneath their lids, my eyes were moving up and down and from side to side, completely against my will, pressing so hard it was almost uncomfortable. I said to myself, “Hey, this is pretty nifty. Let’s so where this goes. I won’t open my eyes.” It just continued for a while, with me simultaneously trying to figure out the cause of the phenomena. I couldn’t at the time, but didn’t care. I just found it fascinating. I knew that if I moved any part of my body or, especially, opened my eyes, it would end, so I kept still. In time, though, I swallowed, and was sort of alarmed at how incredibly dry my throat was. At that point, I figured, “Hey, I’d better cut this out.” I opened my eyes, and it was over.

Was this a lucid dream, or something hypnogogic?

I’ve had similar exp. it usualy happens when I’m stressed
out and trying to goto sleep. I’ve had experiences where
I “fell asleep” on the couch and I could feel my wife
or one of my kids nudging me to wake up. Only when I did
I was completely alone. But like you I could actualy feel
the forces on my body. very weird indeed!

Self hypnosis? Really? Hmmm…

When that happened to you, DOG13, did you realize that you could pop out of it at any time? That was the most interesting to me, my complete control of, yet paradoxically, my submission to, the situation.

And another thing: at the very beginning, when I was right on the cusp of the “self-hypnosis,” or whatever, I could actually sense that, if I maintained my control and refused to open my eyes or move my muscles, I would be entering in to “something,” I just didn’t know what it was at the time.

God. It was so amazing.