[wkipling]

Sounds like shit to me.

16hr long haul and everytime the other guy needs to piss you get woken up. Then you both have to fly the approach completely cooked from the shit rest. And thats without wx or diversions. Clearly not thought out.

[wkat4242]

True, it's not ideal.

I wonder though if there were similar complaints when the flight engineers were phased out, which obviously worked out fine (things are actually a lot safer back then).

For example they could do things like pee tubes (With M/F suitable private receptacles) which some private jets have in the cockpit. So it's not necessary to wake up the other pilot all the time. But yeah a long bumpy flight would be exhausting for both.