Early in the parenting journey we experience just how important structure can be to a new baby: for some infants, the act of swaddling brings a visible relaxation response. Every family has its own lore about the baby who needed the snug safety of a car seat or would only slumber while in the arms of a loving parent. Children press into these boundaries, and by encountering a loving pressure, they find safety and ease of their surroundings. They relax enough to finally sleep. While children...