Thanks. Yes, I have tried Ambien (Stilnox 10, actually, but it's the same, Zolpidem, 10 mg.) plus eye shades, Bose and ear plugs, yet unfortunately for me it's almost the same as taking sugar pills: first little bump, pa announcement, passenger next to me crossing over, kid running in the aisle, whatever, and that's it, I'm fully awake for the duration; last week the guy sitting next woke me up just by shaking the ice cubes in his drink.