Air NZ also have a formal CONTROLLED REST IN COCKPIT system which
allows one pilot at the controls to sleep, not just in EXCEPTIONAL
circumstances as CX has recently promulgated.
This is clearly laid out in Air NZ's manuals, co-ordinated with cabin crew
and accepted practice.
The future will be 3 man long haul, or parked aircraft.
I can't see the CAD doing diddly squat, they have never helped
any aspect of flight safety.