He's taking the Piss OP and he knows it!
That's no way to treat your family,he needs to start pulling his weight!
With me and my DH,I would be up through out the night with our youngest DC because I was breastfeeding but my DH would usually wake up and once I'd fed our DD my DH would take over,he'd wind and change our DD,wrap her up and get her back to sleep,it was a God send,he didn't have to do it and I didn't ask him to he did it because he thought it was the right thing to do.
Every time he did that it would mean another 20/30 minutes extra sleep and I could be up with her 4/6 times a night.
He was on 12 hour shifts in a very important and very physical job but when ever he had a day off or he was working nights he'd get up with our 4 older DC,he'd sort breakfasts,get teeth brushed and hair done,make sure they all got washed and dressed for school,made packed lunches,checked they had everything they needed for school and then he'd do the school run.
If I'd just fed our youngest DD he'd get her, wind her,top and tail her,get her dressed and take her with him on the school run.
He'd then come back,bring our DD up to me,he'd then go and stick some washing on,wash up from breakfast,put the hoover round and by 10.30 he'd be bringing me some breakfast and a coffee in bed.
He was brilliant and he did it because he knew that the days he was at work all day I'd be doing everything with the house and our 5DC and he knew if he was doing nights I'd only be getting about 3 or 4 hours of broken sleep so he wanted to make sure that he pulled his weight.
He knew as important as his job was mine was just as important,I was looking after our children.
They were our children and any mess that was made was our mess and it was our laundry and our meal times,we'd made the decision to have children together so as far as he was concerned they were equally ours to care for.
I don't know what it's like in your home but every friend I've ever had that's had children has said there's far more arguments if one of them wasn't pulling they're weight in the home and with the children.
I'd sit down and have a talk with him,explain that whilst him working is great it's very different to what your job is like,he can sit and enjoy a hot drink when he has a break,most of the time you won't be able to!He can sit and enjoy his lunch in peace without having to take care of the welfare of 2 very young very needy little people!
He gets to have adult conversations without interuption!
He gets to have free time to spend with his friends and to exercise!
Although his job may be long and may be hard,you job never really stops!