8-Month-Old Sleep Schedule: Naps & Wake Windows

Actually, there's no single 8-month-old sleep schedule right now. There are two, and which one shows up on a given day is mostly out of your control.

Most babies this age total 12 to 16 hours of sleep across 24 hours, according to the American Academy of Sleep Medicine,¹ split into 10 to 12 hours at night and 2 to 3 hours across daytime naps. The variable is the naps: most 8-month-olds are mid-transition from three down to two, so the exact times shift for a few weeks before settling.

Is Your 8-Month-Old's Schedule Supposed to Feel This Unpredictable?

If a schedule that worked for weeks is suddenly wobbling, that's not a sign you did something wrong. The third nap gets refused on Monday, needed again on Wednesday, and by Friday bedtime has crept 45 minutes later than you planned. Night wakings also remain common at this age, even in babies who were sleeping well a month ago.⁹ Researchers who tracked infant sleep across the first year found that 8 to 9 months is one of two key windows when sleep patterns change the most, the other being the first six months of life.¹⁰

That inconsistency is not a broken routine. It's the defining feature of 8 months.

If you're coming from a 6-month-old schedule that finally felt predictable, the wobble can feel like a step backward. It isn't.

Why Is Your 8-Month-Old's Sleep Schedule Suddenly Changing?

The third nap is disappearing, but wake windows haven't caught up yet

Wake windows have stretched to 2.5 to 3.5 hours, long enough that a third nap is no longer needed most days to prevent overtiredness. But "most days" isn't "every day." The first two naps haven't fully absorbed the sleep that the third one used to provide, so some afternoons still need a short bridge nap to get to bedtime without a meltdown. That's why the schedule can look different two days in a row and both versions are correct. For the full set of readiness signs before you commit to dropping it, see our guide on when to drop a nap.

Object permanence and separation anxiety are changing how your baby settles

Somewhere around 7 months, babies develop object permanence, the understanding that people and things still exist even when out of sight.³ It's genuinely useful (peekaboo finally lands), and it comes with a cost: your baby now knows you're leaving the room, not disappearing from existence, which is exactly why they protest it.

Unfortunately, separation anxiety often starts or intensifies right around now,⁹ part of a broader window, 8 to 12 months, where the American Academy of Pediatrics says babies will refuse to be left to go to sleep and then wake in the night searching for a caregiver.² It shows up as new resistance to being put down for a nap or bedtime, even from a baby who used to settle easily. If this is showing up as a full-on regression rather than just a shifting schedule, our 8-month sleep regression guide walks through that side of it in more depth.

At the same time, crawling and pulling to stand are being rehearsed in sleep. Research on infants around this age has found that early pulling-to-stand is time-linked to a temporary stretch of disrupted sleep,⁴ and the same pattern shows up around crawling onset.⁵ It looks like a step backward. It's closer to a system upgrade running in the background.

The American Academy of Pediatrics frames this as development rather than backsliding. Separation anxiety, which begins in the second half of the first year, "can cause many nights with disrupted sleep," with a baby waking several times and crying for one parent in particular. The AAP calls it "a normal stage in children's emotional development" that needs a consistent, loving response rather than a schedule fix.

Parents describe the shift as abrupt rather than gradual. One on r/sleeptrain, writing about a just-turned-8-month-old who had been sleep trained since 4 months, said that at 7 months "it was like someone flicked a switch and all naps got short unless using contact" — nothing in the routine had changed, but the schedule underneath it had (r/sleeptrain, September 2025).

How Much Sleep Does an 8-Month-Old Need, and How Many Naps?

Total sleep, night sleep, and naps at a glance

Metric	Range
Total sleep per 24 hours	12–16 hours¹
Night sleep	10–12 hours, often consolidated
Daytime sleep	2–3 hours across 2 naps (transitioning from 3)
Longest night stretch	6–10 hours, variable
Bedtime	7:00–8:00 PM

The good news: "sleeping through the night" at this age just means a 6 to 8 hour stretch, not an unbroken 11 or 12 hours. If your baby still wakes once overnight, that's within range, not a setback. If you're not sure your baby's totals are actually on track, our guide on whether your baby is sleeping enough walks through how to check.

Wake windows get longer across the day

Window	Duration	Why
Morning (wake to nap 1)	~2.5 hours	Shortest; overnight sleep pressure carries over
Midday (nap 1 to nap 2)	~3 hours	Middle window
Evening (nap 2 to bedtime)	~3.5 hours	Longest; has to build enough sleep pressure to replace the dropped third nap

These numbers keep climbing fast. Our wake windows by age guide maps the full curve, and 9-month wake windows shows how much further they stretch in just a few more weeks.

A quick safe-sleep check while the schedule is in flux: once your baby pulls to stand, lower the crib mattress to its lowest setting. Keep the crib itself empty (no pillows, blankets, bumpers, or soft toys), and start every sleep on the back.⁸

What Does a Sample 8-Month-Old Sleep Schedule Look Like?

Which of these two schedules applies on a given day can change week to week during the transition. That's expected, not a sign something is wrong.

Sample schedule: fully on 2 naps

• 7:00 AM: Wake, milk feed
• 8:30 AM: Breakfast (solids)
• 10:00 AM: Nap 1 starts
• 11:00–11:30 AM: Nap 1 ends (1–1.5 hours)
• 11:30 AM: Wake, milk feed
• 12:30 PM: Lunch (solids)
• 2:30 PM: Nap 2 starts
• 3:30–4:00 PM: Nap 2 ends (1–1.5 hours)
• 4:00 PM: Wake, milk feed
• 5:30 PM: Dinner (solids)
• 6:15 PM: Begin bedtime routine (bath, book, short goodbye)
• 7:00 PM: Bed

Sample schedule: still using a "bridge" third nap

• 7:00 AM: Wake, milk feed
• 8:30 AM: Breakfast (solids)
• 9:45 AM: Nap 1 starts
• 10:45–11:15 AM: Nap 1 ends
• 11:15 AM: Wake, milk feed
• 12:15 PM: Lunch (solids)
• 1:45 PM: Nap 2 starts
• 2:45–3:15 PM: Nap 2 ends
• 3:15 PM: Wake, milk feed
• 5:00–5:20 PM: Short bridge nap if needed (15–20 minutes)
• 5:30 PM: Dinner (solids)
• 6:30 PM: Begin bedtime routine
• 7:15–7:30 PM: Bed

The bridge nap is a stopgap. It's not a permanent third nap. If it's still needed most days after two or more weeks with no sign of getting shorter, that's still inside the normal transition window (6 to 9 months), not a cause for concern. For how naps keep changing after this stage settles, see our nap schedule by age guide.

Milk stays the primary source of nutrition at this age, offered alongside 3 solid meals and 3 to 5 milk feeds a day. For the bedtime routine itself, a 15 to 30 minute wind-down with a short, consistent goodbye phrase helps manage the separation anxiety that tends to show up right as the lights go off.

What If the Schedule Keeps Falling Apart Mid-Transition?

How do you know the third nap is really gone versus just having a rough day?

One skipped nap isn't the transition. Before deciding the third nap is finished, look for this cluster over a week or more:

• Consistent refusal of the third nap for a week or longer
• The third nap pushes bedtime past 8:30 PM
• Sudden split nights: a long, happy, wide-awake stretch in the middle of the night
• Morning or afternoon naps getting shorter or harder to start

If you're only seeing one of these on one day, hold the 3-nap schedule a few more days before concluding it's over.

Why is my 8-month-old suddenly waking at 5am?

The instinct is to push bedtime later. Do the opposite. A 5am wake at this age is commonly overtiredness from dropping the third nap too soon, not a bedtime that's too early. Try moving bedtime 30 to 60 minutes earlier for a few days and reassess, rather than pushing it back.

Why is my baby suddenly fighting bedtime they used to be fine with?

This is separation anxiety, not a broken routine. Your baby now understands that you're actually leaving the room, not disappearing.³ Keep the routine exactly the same. Place your baby in the crib awake but calm rather than waiting until they're asleep,⁷ and add a brief, predictable goodbye (the same phrase, or a few extra minutes of quiet closeness) rather than a long farewell or a change to the whole routine.⁶

How Do You Know It's Time to Adjust the Schedule Again?

Sign	Overtired	Undertired	On track
Falls asleep at nap start	Under 5 min, fights first	Takes 20+ min	5–15 min
Nap length	Short (under 45 min), unsettled on waking	Short but calm on waking	1–1.5 hours
Mood before nap/bedtime	Hyperactive or intense crying	Content, no sleepy cues	Mild sleepy cues (eye rub, staring, slowing down)
Night sleep	Early waking (before 6am), fragmented	Split night, delayed settling	6–10 hour stretch, resettles easily
Bedtime	Fights it hard	Not tired at usual time	Settles within 15–20 min after a brief goodbye

If a nap is consistently 30 to 40 minutes and your baby seems rested on waking, the wake window before it is the first thing to check. Extend it by 15 to 20 minutes before changing anything else. This is the most common short-nap cause at this age. For the fuller list of overtired versus undertired cues across ages, see signs your baby is overtired.

One thing this isn't a sign of: the next nap transition, from two naps down to one, doesn't typically happen until 12 to 18 months. A short nap or a resisted bedtime right now is about the 3-to-2 transition or a motor-milestone spillover, not an early signal to drop to one nap.

Call your pediatrician if your baby can't stay awake even 2 hours without extreme distress, if the disruption hasn't improved after 4 to 6 weeks, or if you notice illness signs (fever, ear-pulling, red gums with excessive drooling) alongside the sleep change.

What This Means for You Tonight

1. Third nap refused today? Don't force it tomorrow, but don't call it gone yet either. Hold the 2-nap schedule for a few days and watch for the full readiness checklist above.
2. Baby woke at 5am? Move bedtime 30 to 60 minutes earlier tonight, not later. An overtired baby wakes earlier, not later, so pushing bedtime back only makes the next morning worse.
3. Bedtime turning into a fight? Keep the routine identical, place your baby down awake but calm, and use a short, consistent goodbye instead of a long one.
4. Nap came up short but baby seemed rested? Extend tomorrow's wake window before that nap by 15 to 20 minutes before you change anything else.
5. If any of this runs past 4 to 6 weeks with no improvement, or you notice any breathing concerns, call your pediatrician.

Frequently asked questions

How many naps should an 8-month-old have?

Most 8-month-olds are down to 2 naps, though some still need a short third "bridge" nap on certain days as they finish the 3-to-2 transition, which typically completes between 6 and 9 months. Total daytime sleep target stays the same either way: 2 to 3 hours, whether it's split across 2 naps or 3.

When do babies drop the third nap?

Most babies drop the third nap between 6 and 9 months. Before deciding it's gone for good, look for a cluster of signs: consistent refusal for a week or more, the third nap pushing bedtime past 8:30 PM, sudden split nights, and morning or afternoon naps that are getting shorter or harder to start. One skipped nap on one day isn't the same as being ready to drop it. Our when to drop a nap guide breaks these signs down for every age and stage.

What time should an 8-month-old go to bed?

Most families land on 7:00 to 8:00 PM, based on the roughly 3.5 hour evening wake window after the second nap. During the transition, a temporarily earlier bedtime, even 6:30 to 7:00 PM, on days with a short nap or no third nap, helps prevent overtiredness while the schedule settles.

My 8-month-old was sleeping fine and now wakes at 5am. What changed?

This is overtiredness from dropping the third nap too soon, not a bedtime that's too early. It's a common misread: parents push bedtime later to compensate, and it tends to backfire, since an overtired baby wakes earlier, not later. Try moving bedtime 30 to 60 minutes earlier instead for a few nights, watch how the mornings respond, and reassess from there.

How long are 8-month-old wake windows?

Wake windows run 2.5 to 3.5 hours, shorter in the morning and longer by evening: roughly 2.5 hours after waking, 3 hours between naps, and 3.5 hours heading into bedtime. The evening window is longest because it has to build enough sleep pressure to cover what the dropped third nap used to provide.

Why does my 8-month-old suddenly fight bedtime when the routine hasn't changed?

This is separation anxiety, not a broken routine. Object permanence is emerging around this age,³ so your baby now understands that you're truly leaving the room. Keep the routine consistent, place your baby in the crib awake but calm,⁷ and use a short, predictable goodbye rather than a long one or a new sleep association.

More by age: 7-month sleep schedule · 9-month sleep schedule · every age in one place

Sources

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2. American Academy of Pediatrics. "Emotional and Social Development: 8 to 12 Months." HealthyChildren.org. https://www.healthychildren.org/English/ages-stages/baby/Pages/Emotional-and-Social-Development-8-12-Months.aspx
3. Dosman C, Andrews D. "Anticipatory guidance for cognitive and social-emotional development: Birth to five years." Paediatrics & Child Health. 2012;17(2):75–80. https://pmc.ncbi.nlm.nih.gov/articles/PMC3299350/
4. Atun-Einy O, Scher A. "Sleep disruption and motor development: Does pulling-to-stand impact sleep-wake regulation?" Infant Behavior and Development. 2016;42:1–9. https://pubmed.ncbi.nlm.nih.gov/26704990/
5. Scher A, Cohen D. "Sleep as a mirror of developmental transitions in infancy: the case of crawling." Monographs of the Society for Research in Child Development. 2015;80(1):70–85. https://pubmed.ncbi.nlm.nih.gov/25704736/
6. American Academy of Pediatrics. "Separation Anxiety & Sleeping Trouble in Young Children." HealthyChildren.org. https://www.healthychildren.org/English/healthy-living/sleep/Pages/separation-anxiety-and-sleeping.aspx
7. American Academy of Pediatrics. "Getting Your Baby to Sleep." HealthyChildren.org. https://www.healthychildren.org/English/ages-stages/baby/sleep/Pages/getting-your-baby-to-sleep.aspx
8. American Academy of Pediatrics. "How to Keep Your Sleeping Baby Safe: AAP Policy Explained." HealthyChildren.org. https://www.healthychildren.org/English/ages-stages/baby/sleep/Pages/a-parents-guide-to-safe-sleep.aspx
9. Suni, Eric. "8-Month Infant Sleep Regression." Sleep Foundation (med-reviewed Nilong Vyas, MD, MPH). Updated July 15, 2025. https://www.sleepfoundation.org/baby-sleep/8-month-sleep-regression
10. Huang XN, Wang HS, Lu XC, Jiang JX, An L. "Development of sleep/wake patterns in infants during the first 12 months of life." Zhonghua Er Ke Za Zhi. 2009;47(3):183–188. PMID 19951509. https://pubmed.ncbi.nlm.nih.gov/19951509/ (supporting observational context; Chinese urban cohort, parent-diary method).

Track the 3-to-2 Nap Transition Without Guessing

The hardest part of 8 months usually isn't the schedule itself. It's not knowing which version of today's schedule you're going to get. Pelio logs naps and predicts the next wake window in real time, so you don't have to re-guess the whole day every time the third nap disappears or reappears. For the full picture across every age and stage, explore our baby sleep hub.

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