Interesting, Dave...never heard of this. It explains what happened to my group when we were flying Aeroflot from Moscow to Copenhagen. All thirty of us fell asleep almost immediately as the plane reached a higher altitude. The fact that we all fell asleep (30 in the group total) always was a bit of a mystery. Now I know, they probably cut back the oxygen.

Hope you had a good trip (aside from the bad flight).

Stephanie

In every man there is something wherein I may learn of him, and in that I am his pupil.--Ralph Waldo Emerson