Question: Do you think it's possible that dreaming can make you even more tired the next day?

In the past week, I have had some crazy, weird, and very detailed dreams. They weren't nightmares, but there were things that caused me stress and anxiety. When I woke up, I remembered my craziness and I felt exhausted. Last night, I didn't dream at all (that I remember) and I feel completely rested. I know that R.E.M. sleep is supposed to be the best, but maybe it's not.... Would these dreams be considered tremors of a sort?

Oh, and our CEO is coming into the garage this afternoon to watch how everything is done. Pray for me as that is when I usually get a little more sleepy and ready to get out of work. :)