Wake Window Calculator

Wake Windows for a 9 months Old

A 9 months old can typically stay awake 150–195 minutes between sleeps, taking about 2–2 naps and sleeping 2–3 hours during the day.

6 months

Schedule built from

Today's schedule

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    What a 9 months old's day looks like

    Two solid naps is the norm. Separation anxiety can fight bedtime — a consistent wind-down beats a longer window.

    Windows lengthen across the day: start the morning near 128 minutes after wake-up and let the final stretch before bed run closer to 199 minutes. If naps keep running short, the day is likely overtired — pull bedtime earlier rather than stretching windows.

    Neighbours on the chart: see the full by-age table or the 4-month sleep regression guide for the rough patch that catches almost everyone.