Originally Posted by
ExperimentalAB
Lenght of flight has everything to do with this. Can you imagine falling asleep on the twenty minute flight ORD-MKE or ORD-SBN? Most of the time you're asses and elbows up there. The more down-time you've got, the easier it is to go the way of Zzz's, no?
The point is, on their 45 minute minute flight - they should have been a bit too busy to fall asleep. They must have been exhausted...
That was my point though, that they could easily have been so tired that even a short flight would provide enough time to fall asleep.
45 minutes is enough time that there'd be some idle minutes in cruise.