The RAAF put a reasonable emphasis on crew rest, which was why the aircrew stayed in hotels in Rocky instead of being in the exercise area.........the lads were expected to "sleep" during the hot days in tents in the middle of a busy army camp, and still be alert for the night flights
It's called training for the real thing. Our lads slept in tents, flew 140 hours, and more per month, 155mm howitzers next door firing day and night, and flying night ops, often being dragged out of bed at oh dark thirty because some place is in the process of possibly being over run. No 5* hotels on the front line.