My wife refuses to put her daughter to bed at a decent time: Advice?

So I’m not a mama. I’m actually the papa but I joined this group to get more of an insight on how women think and handle certain situations.Recently I’ve been going through a personal battle that I need some advice and insight with. Every night I find myself falling asleep alone because my wife works the swing shift and feels like it’s ok to come home and allow her daughter(my step-daughter) to stay up as late as her. Every night we have her(which is bi-weekly), is a struggle for us because I plain and simply cannot get my wife to force my step-daughter to go to bed at a decent hour. It has obviously taken a toll on our sex life during those weeks and I don’t know how else to relay to my wife that this is problematic