Earlier quoted context omitted.
Good for you. I can't sleep sitting on plane. The only times I've been able to to sleep is (1) getting a free upgrade to 1st class where I could lie down (2) a mostly empty plane where I could stretch out across three seats.
Like you, I cannot sleep on vehicles, but I used benzos on a recent flight, and it was like an instant time-skip forward during nighttime of the destination time zone, which helped with jet lag. Benzos are pretty terrible for you if used regularly, but if you have the self-control to limit your usage to a few long flights a year, it would be irrational not to take advantage of them. (I am not a doctor)
Outside of flying, I have no temptation or desire to take them thankfully, so a prescription with ten pills lasts me literally years.