Sometimes I get things kind of like dreams right when I fall asleep or am about to fall asleep, and I think you probably get them too. When I'm trying to fall asleep at night I sometimes think about doing something (like tactile imagery) and then it becomes kind of like a dream, but a strong enough impulse to move will wake me up and actually make me move. For instance, a few nights ago I thought about playing frisbee as I was falling asleep. After maybe a minute or so, I imagined the frisbee coming at me, a little over my head. I tried to throw my right hand up quickly to catch it, and ended up waking up (assuming I was asleep) and punching the wall by my bed. Another instance: I was on a slanted surface and slipped, subsequently waking up and bracing myself for a fall. You may have had a dream in which you were falling and you woke up and sat straight up in your bed.

What do you think this state is? Is it a dream in which you're not in full SP? If so, how do you begin dreaming immediately once you fall asleep. Or is it merely imagination that you become so engrossed in that you think it's real? Or maybe some type of state in-between sleep and wakefulness in which you're dreaming but can still move?