I can recall a nightmarish redeye SFO/JFK several years back. I was to go directly from the airport to my Manhattan office so getting as much rest as possible was very important HOWEVER that wasn't going to happen on this flight. Literally, from the moment that door closed and up until less than an hour before landing that little *&@# yapped and yapped and yapped and yapped and, well you get the picture. I've had crying babies and the such but let me tell you, there's nothing like this for 5 some hours!