Infant sleep training refers to various methods used to help babies learn to fall asleep independently and develop a consistent sleep routine. These techniques often involve teaching infants to self-soothe, which can lead to longer sleep periods and improved overall sleep quality for both the baby and parents. Common approaches to sleep training include the Ferber method, which involves gradually increasing the time before comforting the baby, and the Chair method, where parents slowly move further away from the crib each night. Parents should choose a method that aligns with their family's needs and their baby's temperament.