Is it fair to ask her

So Joel has his son every other week and every weekend.

The weeks he has him he spends most evenings with us but goes home for the night. He's a butcher and goes to work at 4:30 am. So if he stayed the night here during the week it would mean Star would have to get his boy up and ready for school. He goes to the same school as my son. But would it be fair to even ask her to do this. His son is 9 but is special needs. He needs a bit more help getting ready then my son does. I just don't know if I should even ask her.