Self-settling

Self-settling — also known as self-soothing — refers to the capacity of an infant to transition from wakefulness into sleep, or to return to sleep after a partial arousal between sleep cycles, without requiring a caregiver to intervene. In practice, this means a baby who does not need to be fed, rocked, or held in order to fall asleep. The term is commonly used in parenting and child-sleep discussions but does not have a formal clinical definition.

When do babies develop the ability to self-settle?

Self-settling is considered a developmental skill that emerges gradually rather than being present from birth. There is no single agreed-upon age at which infants are expected to self-settle, and individual variation is significant. Neurological maturity, temperament, feeding method, and caregiving environment all influence when and whether a baby settles independently.

What does official guidance say?

The Lullaby Trust does not endorse specific sleep-training methods and cautions that "encouraging babies to sleep for longer and more deeply than is usual for their stage of development may affect their ability to wake up if something is wrong." The NHS advises parents to consult their health visitor or GP if they are concerned about their baby's sleep. Neither the NHS nor NICE provides guidance on specific techniques for teaching self-settling.

Is self-settling the same as sleeping through the night?

Self-settling is related to but distinct from sleeping through the night. A baby who can self-settle may still wake at night — as is normal given infant sleep-cycle architecture — but is able to return to sleep without intervention. The Lullaby Trust notes that normal night waking is a characteristic feature of infancy, and that around a third of babies have never slept all night by twelve months.