Good theory. I have always had VERY vivid dreams....my whole life since I was a child. I run in bed, talk, scream and kick in my dreams often. My dreams are so rich and complicated....with such imaginative flair....and since I'm not the most imaginative person while conscious, it seems like something supernatural occurs when I sleep. When we are not sleeping due to mania, perhaps our brains are partially sleeping on some level. Hmmmm...you've got me thinking. Thanks for sharing your theory with us....I'm always trying to make sense of things and come up with theories about "why" things happen.....your idea makes more sense than mine usually do.