Presentation anxiety
I only had about three hours to sleep because I was up all night preparing a presentation. I kept having these awkward dreams where I was giving the presentation, and I was really unprepared and kept fucking up. I would then wake up (for real) and not believe it when I still had x amount of time left to sleep. I would then drift back into the dream for about ten minutes at a time. The place I was giving in the presentation was some classroom with three walls (one side open) in a dirt parking lot along a creek.