I am a SAHM and he works in a demanding job with an hour's commute each way so I don't mind getting up in the night to dd or ds but last night was a really bad night. I went to bed at 9.30, got up at 10pm to dd, 12.30 dd, 1.30 ds and 3am to dd again. When she shrieked again at about 3.15 he got up. She was asleep in 10 mins, he struggled to get back off to sleep and kept both of us awake til 4am.
I got up with ds at 5.45am and dh slept til 6.30. I would consider his night's sleep a really good one at the moment, but he was in a right old grump and said he was "totally knackered" after flinging a bit of the dishwasher he'd broken across the room.
So is it unreasonable for him to get up occasionally in the night?