Unfortunately, the quiet time is not quite as flexible. I think the default second meal time should be around the 11-12 hour mark. Otherwise, it is very difficult to get a full night of sleep (which is quite useful on a 16-18 hour flight). I know I was pretty deep under at the time, and it was the noise that woke me up, not the arrival of my requested meal. I spent the remaining 6 hours after the meal unable to fall asleep, but not quite alert enough to actually enjoy the TV. On the plus side, I discovered that reclining on the bed with 3 pillows as a backrest was more comfortable than using the recliner seat.

Oh well, my next RT will be entirely in PE, so if I can manage 6 hours of sleep at all it will be a very positive thing (unless they cut the tragically under-performing LAX-SIN route by the time I fly in November, in which case I will likely be SOL and downgraded to Y).