L.H.
I don't have this issue but have many friends who do. Has she tried mediation? She does have to remember that they will not agree on everything. Not even parents who live in the same house do. However there should be rules on doing homeowrk, chores and bedtimes. I think these need to be some what similar. The kids should have a bedtimes especially on a school night. It is proven that well rested and fed children do better in school. I think having a neutral mediator may bring this home to the dad. Also if there is issues with school a meeting there may help. If it's just her bringing it up to him there may be some animosity towards her that he will not listen to anything she says no matter how much it makes since.