Ny-Quil did come to the rescue. My head hit the pillow just after midnight and that was that. I don't think I woke up once during the evening, a first for this trip. I inner clock got me up just before eight. I think one more night like that will do wonders. And while I'm groggy, I can tell I feel better, if only for having gotten a good night's sleep. I think I'll still be coughing today and my voice is shot, but I think by Friday I'll be okay.