A–Z Glossary

Split Night

A split night is a prolonged period of alert wakefulness in the middle of an infant’s nighttime sleep.

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Split Nights and Long Awake Periods

Split Nights and Long Awake Periods

What a split night means A split night is an extended period of wakefulness in the middle of the biological night, often lasting roughly one to several hours. The baby may babble, roll, feed intermittently, cry, or lie quietly while showing little sign of returning to sleep. The defining feature is duration and alertness, rather […]