One of the many struggles of parenthood includes being the enforcer of bedtime. It can be especially hard during the transition from summer break, back to school. The truth is, kids need sleep to be successful during the day. Below is the ammunition you need to reason your way through this battle to a peaceful resolution. One tactic that can be successful with children is taking time to explain the reasons why the body needs to sleep. Here are four important things that happen while children sleep. Repair muscles and rejuvenate the body for the next day- if sleep..