One's man should be able to supply, I think.
On a long haul flight he'll probably be asleep for 50% of it.
It is a legal requirement that a member of the cabin crew enters the flight deck every 30 minutes to 'offer a drink'. In reality they are going in to check that both pilots haven't nodded off. :hehe:
I rarely can sleep on a plane.
Only once on a BA flight from Washington DC to London I slept the whole flight. It was a pleasant surprise when I woke up and there s 30 mins left to go. The flight really empty.
I hate when I nod off and wake up thinking I've killed some time. only to see I've been sleeping for 4 minutes.