Originally Posted by NYCbustravelguy

To me the key is sleeping just enough on the plane to allow me to stay up to normal bedtime in the jurisdiction. I am always surprised by people flying from LHR to JFK on the evening departures on AA 4:35, 6:30 or 8:05 pm, they sleep the entire flight, so when they get to NY it is around 8, 10 or 11 pm. I imagine thatit is then hard for them to go right to bed or get a true good night sleep.