If you're not the one having the dreams is it really... you?
This morning I napped for an hour before work knowing ahead of time I may not get any 'sleep'. I started to 'dream' immediately, in and out of elaborate, vivid dreams, filled with lives and emotions, unable to direct the course.
Aside from being aware I was dreaming, and being able to force-wake myself and start the dream where I wanted... then guide it for a moment... I couldn't do anything.
I could feel my sleepiness, my exhaustion, and in its' clutches I caved eventually... unable to wake, or get any sleep.