So, after two days of mapping, it's night, my feet are sore, and I'm trying to go to sleep. And what's going on? Every time I close my eyes, I try to draw outcrops on my map sheet. For some reason, that then wakes me up. Or, I'll be walking around an outcrop taking GPS readings, and my foot steps on a soft bit of earth or a hackly rock, and that wakes me up. It feels so real that I jerk my foot back, which makes my whole body jerk.Well, time to give it another shot: my 4:30 alarm comes early, even if I do snooze it until 5:00!