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What is sleep regression in a 4-year-old?

Quick answer

A 4-year-old sleep regression is a temporary stretch — usually a few days to a few weeks — when a previously good sleeper suddenly resists bedtime, wakes at night, or wakes early. It's often driven by developmental leaps, new fears, or dropping a nap.

At four, big changes drive sleep hiccups: a booming imagination can spark nighttime fears, more independence leads to bedtime pushback, and many children give up their nap, which temporarily throws off timing. These regressions are normal and usually pass. The most helpful response is to hold your routine steady rather than adding new habits you'll have to undo later.

Keep bedtime consistent and calm, address fears with reassurance and a nightlight rather than long negotiations, and consider moving bedtime slightly earlier if a dropped nap is leaving your child overtired. A comforting, predictable wind-down — including a calming story — helps a 4-year-old feel secure. If sleep problems last more than a few weeks or include snoring or breathing pauses, check with your pediatrician.

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