A few months ago I took an overnight flight and it was brutal. Unfortunately, I have another one coming up in two weeks. Not that long, only 6 hours, but I need to arrive ready to go, as I have plane well into the evening on the first day. This will be a West Coast to East Coast trip, so a 3-hour time difference in our favor, at least. Does anyone have any tips for sleeping on the plane? What's your favorite travel pillow, eye mask, ear plugs, headphones, etc? Thanks!