Sleep health and its promotion are emerging as critical components for optimal health outcomes. Indeed, the Office of Disease Prevention and Health Promotion (OASH) has set a goal for Healthy People 2030 to enhance health, productivity, well-being, quality of life, and safety by promoting adequate sleep. Sleep is particularly crucial during pregnancy, a period when sleep disturbances are common and can have significant implications for maternal, fetal, and delivery outcomes. This chapter investigates various prenatal sleep disorders, including insomnia, sleep-disordered breathing (SDB), restless legs syndrome (RLS), and circadian rhythm sleep-wake disorders, and their effects on pregnancy, delivery, and infant outcomes. It concludes with the suggestion that early identification and multidisciplinary management of sleep disorders during pregnancy are crucial for improving maternal and fetal health outcomes. Addressing these disorders not only benefits pregnancy but also has long-term health implications for both mother and child.