There's a lot we can't control when it comes to our child's sleep. So much comes down to luck, temperament, time and patience. However, understanding the science and evidence based information around infant sleep gives parents anticipatory guidance to establish healthy sleep/wake strategies and routines that are so important to the child's health and wellbeing. In this booklet on infant and child sleep I systematically lay out the biological and environmental elements that influence sleep and the strategies based on these elements that help improve a child's sleep.