SS.
The allocation of children seems to be better these days; maybe I have been lucky? Anyhow, most sleep when they're tired, bunks or no bunks. No one's a robot.
But it's not so much the rest problem SS. I like the 6 days off between these flights meaning 3 flights a month and about 20 rest/free days from work. You could almost commute..............especially in European summer time..............