Shadowpurser, on busy flights I've often been asked 'are you happy with 30/40 minutes?' and of course the answer is always 'no problem'. So maybe it was a lack of communication? Big brutha, you are so right. 2 to 3 hours through the night without a call ( and all pax asleep) is far from unusual. I'm amazed when this happens, especially on a 2-crew flight. You would think self-preservation would mean this wouldn't happen.