Sleep training for infants is a process of teaching babies how to sleep independently through the night. It involves gradually reducing the presence and intervention of parents during bedtime routines. Sleep training may include methods such as the Ferber method, the cry it out method, or the chair method, and involves establishing a consistent sleep schedule and routine. While sleep training can be controversial, it can be a helpful solution for parents who are struggling with sleep deprivation and are looking for a way to help their baby get the rest they need. It is important to note that sleep training should only be done when the baby is developmentally ready and should always be done under the guidance of a pediatrician.