I am among those who will be flying to Honolulu for less than the price of a bag of chips very soon. I'm doing it in four flights over the course of 26 hours, leaving my house at 0545 GMT and arriving in Honolulu at 2250 local. If I didn't sleep on the outbound TATL, I'd be asking an awful lot of myself.
So thanks to the expertise gleaned from BAEC FTers, I've booked 64k on the UD. I shall have lunch and then put all three shades down and attempt to sleep. In the middle of my waking day.
That's my plan and I'm sticking to it. I don't think it'll affect anyone else due to the nature of this seat. I just hope the plan works and I can then stay awake until I arrive at my hotel... at 0930 GMT the following morning!