9-Month-Old Sleep Schedule

Nine months in, and your baby is a completely different person than the floppy newborn you brought home. They're crawling (or about to), pulling up on furniture, maybe cruising along the couch, and definitely getting into things you didn't think they could reach. The good news for sleep? The 3-to-2 nap transition is likely behind you, and a predictable two-nap schedule is settling in.

The less-good news? Separation anxiety just showed up, and your baby might be practicing their new standing skills at 2 AM.

How much sleep does a 9-month-old need?

Most 9-month-olds need about 13 hours of total sleep per day. That typically breaks down to 10.5 hours at night and 2.5 hours of daytime naps.¹

The AASM recommends 12 to 16 hours of total sleep for infants 4 to 12 months.² The National Sleep Foundation puts the range at 12 to 15.³ A 2012 systematic review of 34 studies found normal infant sleep ranged from 9.7 to 15.9 hours, so there's wide biological variation.⁴

If your baby gets 12 hours and seems rested and happy, that's their number. Don't stress about hitting exactly 13.

We cover the full range in our sleep needs by age guide.

Wake windows at 9 months

At 9 months, wake windows run about 2.5 to 3.5 hours, with a typical window of 3 hours (180 minutes).

The first window of the day is still the shortest. Most 9-month-olds are ready for their morning nap about 2.5 hours after waking up. That's roughly 80% of their midday window.⁵ The last window before bed is slightly shorter than midday too, around 85% of that middle stretch, to prevent overtiredness before the long night ahead.

These windows are noticeably longer than a couple of months ago. If you're still running on 6-month timing, your baby might be fighting naps because they're simply not tired enough yet.

Our wake windows chart has numbers for every age.

How many naps at 9 months?

Two. A morning nap and an afternoon nap, each running 60 to 90 minutes.¹

By 9 months, most babies have fully transitioned from three naps to two. Bruni et al. found an average of 2.2 naps per day at this age, which tells you the transition is basically done for most families.¹ If your baby is still on three naps and doing fine, there's no rush to force the change, but most 9-month-olds can't sustain three naps without bedtime creeping too late.

Mornings are usually the easier nap. Afternoons can be a battle, especially when separation anxiety is running high or your baby just figured out a new way to pull up in the crib.

Our nap transition guide has more on when and how to drop that third nap.

A sample day

Times will shift based on when your baby wakes. Focus on the spacing between sleeps, not the exact clock times.

Time	Activity
6:30 AM	Wake up, milk feed (breast or bottle)
7:00 AM	Play, crawling practice, exploration
8:00 AM	Breakfast (solids: finger foods, soft fruits)
9:00 AM	Nap 1 (60 to 90 minutes)
10:15 AM	Wake, milk feed
10:45 AM	Play, outdoor time, sensory activities
12:00 PM	Lunch (solids: protein, vegetables, grains)
1:15 PM	Nap 2 (60 to 90 minutes)
2:30 PM	Wake, milk feed
3:00 PM	Play, practice standing, music
5:00 PM	Dinner (solids: varied textures, finger foods)
5:45 PM	Milk feed
6:15 PM	Bedtime routine (bath, pajamas, book, song)
7:00 PM	Bedtime

Bedtime at 7 PM might feel early, but research supports the 6:30 to 7:30 PM range for this age.⁵⁶ Earlier bedtimes align better with the infant circadian rhythm and the evening melatonin surge, which leads to longer, more consolidated nighttime sleep.⁷

Notice that the first wake window (about 2.5 hours) is shorter than the midday window (about 3 hours), and the last window before bed (about 3.25 hours) falls in between. That asymmetry is intentional and consistent across practitioner recommendations.⁵

Bad nap days will happen. If nap 2 was only 30 minutes, consider moving bedtime 20 to 30 minutes earlier rather than trying to squeeze in a third nap at this age.

Feeding and sleep at 9 months

By 9 months, most babies are eating three solid meals a day alongside 3 to 5 milk feeds (breast or bottle). Each bottle is typically 180 to 240 ml (6 to 8 oz).⁸

Finger foods are the big new thing. The pincer grasp (thumb and forefinger) is developing, which means your baby can pick up small pieces of soft food on their own: banana chunks, steamed carrot sticks, scrambled egg, pasta. Milk is still a major calorie source, but solids are becoming real meals rather than practice runs.

For night feeds, most 9-month-olds can go the entire night without eating. The 0 to 1 feed range is typical.⁹ If yours still wakes to eat once, that's fine, but if there are multiple night wakings with feeding, it's worth looking at whether those are hunger or habit.

Schedule solids during wake windows, about 30 to 60 minutes after a milk feed. Avoid introducing new or messy foods right before nap time.

Our feeding guide breaks down amounts and frequencies by age.

Common problems at this age

Separation anxiety wrecking bedtime. Around 8 to 10 months, babies develop object permanence, the understanding that things (and people) still exist when they can't see them.¹⁰ Your baby now knows you're out there somewhere when you leave the room, but they have no concept of when you'll come back. Cue the tears at bedtime, the screaming when you put them down, the sudden need to be held constantly. A consistent, predictable bedtime routine helps because it gives your baby a reliable sequence of events that always ends the same way.⁶ Peek-a-boo during the day (seriously) helps reinforce that you always come back.

Standing up in the crib and getting stuck. Pulling to stand is exciting for your baby, and they'll practice it everywhere, including the crib at 2 AM. The classic scenario: baby pulls up, can't figure out how to get back down, and cries for help. During the day, practice sitting back down from standing. Hold their hands and guide them through the motion over and over. The more they practice while awake, the faster they'll figure it out at night. Research confirms that pulling-to-stand co-occurs with a period of disrupted sleep, and it typically resolves within a few weeks as the skill becomes automatic.¹¹

The 8-to-10-month sleep regression. This one is real. Separation anxiety, motor milestones, and cognitive development are all hitting at once. Wake windows may need a slight bump, and nights can get choppy. It usually lasts 2 to 6 weeks. Our sleep regression guide covers it in detail.

Early morning wakes. Still one of the most common complaints. The usual causes at this age: bedtime too late (overtiredness creates fragmented sleep), the room getting light too early, or the afternoon nap running so long it pushes bedtime. If your baby is consistently waking before 6 AM, try moving bedtime 15 minutes earlier for a week.

Frequently Asked Questions

Should a 9-month-old still be taking three naps?

A few are, and that's okay. But most 9-month-olds are solidly on two naps. If your baby is fighting the third nap every day, taking very short third naps, or if that third nap is pushing bedtime past 7:30 PM, it's probably time to drop it. The 3-to-2 transition typically happens between 7 and 8 months, with a full range of 6 to 9.¹

How do I handle separation anxiety at bedtime?

Keep the bedtime routine warm, predictable, and unhurried. Don't sneak out of the room. Say a calm, brief goodnight and leave. If your baby cries, it's okay to do brief check-ins (appearing for a moment, then leaving again) to reassure them you're still around. During the day, practice short separations (leaving the room for 30 seconds and coming back). This builds trust over time.

When will my 9-month-old sleep through the night?

Many already do. At this age, babies don't need night feeds from a nutritional standpoint.⁹ Whether your baby actually sleeps 10 to 11 hours straight depends on how they fall asleep, whether they can connect sleep cycles independently, and temperament. One wake-up is still common and normal.

My baby keeps pulling up and standing in the crib. What do I do?

This is a phase, not a permanent problem. Practice sitting down from standing during the day, over and over. At night, calmly lay them back down without turning it into a game. Most babies figure it out within a week or two once the motor skill is no longer novel.¹¹