Lifehacker spoke to Daniel Lewin, a psychologist and sleep specialist, about mismatches in chronotype between parents and children.

Dr. Lewin first offers the most obvious solution: If one parent is a night owl and the other is a lark, the morning person takes the early shift and the other the late. A friend of mine has a partner who is nearly nocturnal, so he handles all night wakings, midnight vomits, and early risings, and she takes over at around 6AM.