9-Month-Old Sleep Schedule: The Settled 2-Nap Day

By the Wermom Editorial Team · Evidence-checked against AAP, AASM, NHS & CDC guidance

Nine months is, for a lot of families, one of the more predictable sleep stretches — assuming the 8-month regression has eased off. Most babies are now firmly on two naps, wake windows are long enough to plan a real day around, and bedtime is reliably in the same ballpark each night. Here's what a typical nine-month day looks like.

How much sleep a 9-month-old needs

The AASM recommends 12–16 hours per 24 hours, including naps, for infants 4–12 months. (AASM pediatric sleep duration consensus)

A typical 9-month-old gets about 11–12 hours overnight plus roughly 2.5–3 hours of daytime sleep across two naps.

Wake windows and naps

At nine months, most babies are solidly on 2 naps, with wake windows of about 3 to 3.5 hours (often longest before bed). The morning nap usually comes after 2.5–3 hours awake; the afternoon nap follows a slightly longer window; and bedtime caps the day after the longest stretch.

A common nine-month trap is the false third-nap drop in reverse — babies briefly refusing one of the two naps. Resist treating this as readiness for one nap. Most babies don't move to a single nap until around 14–18 months, so a nap refusal at nine months is almost always a wake-window or developmental blip, not a true transition.

A sample day

What's normal at nine months

Keep every sleep on the back on a firm flat surface, with no soft bedding in the crib. (AAP Safe Sleep – HealthyChildren.org)

Handling early waking at nine months

Early-morning waking (think 5 a.m.) is one of the most common nine-month complaints, and it usually traces back to the schedule rather than habit. The frequent culprits: a bedtime that's too late (overtiredness paradoxically causes earlier waking), too much daytime sleep shifting the night earlier, or the morning nap landing so soon after wake-up that it acts like an extension of night sleep. Try a slightly earlier bedtime first, make sure the first wake window is a full ~3 hours, and keep the room dark. Resist treating 5 a.m. as morning — a consistent "not yet" response keeps it from becoming the new normal.

A note on this guide: General information reviewed against AAP and AASM guidance — not medical advice for your baby. For feeding and night-feed questions, follow your pediatrician.

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A settled 2-nap day is easy to keep on track when you can see wake windows and nap lengths at a glance. Wermom logs them in seconds. [See how Wermom works →]

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Frequently asked questions

Should my 9-month-old be on 1 or 2 naps?

Two naps. The move to one nap typically doesn't happen until around 14–18 months. A nap refusal at nine months is usually a temporary blip, not readiness for a single nap.

Why is my 9-month-old standing up in the crib instead of napping?

This is classic for the age — babies practice new motor skills (pulling to stand) at sleep times. Drilling the skill, especially lowering back down, during the day usually shortens the disruption.

How long should a 9-month-old's wake windows be?

About 3 to 3.5 hours, with the longest window before bedtime to build enough sleep pressure for a settled night.

Does my 9-month-old still need a night feed?

Many 9-month-olds can sleep through the night without a feed, but some still genuinely need one, especially if breastfeeding. This is an individual question best answered with your pediatrician based on your baby's growth and feeding pattern — not a fixed rule by age.