One of the things that changes instantly when you have a baby is your relationship to sleep. It usually becomes scarce and precious, and everyone has advice. Much less talked about is the continuing nighttime struggle between parents and their young kids. Because by the time your child is a year or two old, any competent parent has it under control, right? Kids go to sleep and parents get to have their night. Adam Mansbach drew back the curtain on this ridiculous fallacy.