Quite right Darkmatters, I seem to have been over simplifying things in my mind. These N-REM dreams are quite difficult to remember but I have had these experiences. I think that this just goes to show that the idea that we are "unconscious" during sleep is rather pathetic. We respond to environmental stimuli, we continue to think and to process information and we can be highly aware of our situation. What else is there which is a component of being conscious. This is nothing like being knocked out. I know this is nothing new but I think that the point needs regular reiteration.