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

Looking for a 17-month-old sleep schedule that actually holds up, not just another chart? You're in the right place.

A 17-month-old sleep schedule needs 11 to 14 hours of total sleep per 24 hours, per the CDC and WHO.¹ That's 10 to 12 hours at night plus a 2 to 3 hour nap, though they don't always add up neatly. Most toddlers are down to one nap, with wake windows of about 5 hours before it and 5.5 after.

Is Your 17-Month-Old Sleep Schedule Actually the Problem?

If you're here, there's a good chance your toddler had a working schedule that just stopped working, seemingly overnight. Before you touch a single nap time, ask a different question first: is this actually a schedule problem? A lot of what looks like a broken routine at 17 months is really teething pain or normal mid-night babbling. Not a wake-window mismatch. The schedule is below, in full. But that reframe matters first. For the full library of age-by-age schedules, see our baby sleep hub.

Why Does Your 17-Month-Old's Sleep Suddenly Feel Unpredictable?

Three things converge right around 17 months. Individually, each is normal. Together, they can turn a previously solid sleeper into a toddler fighting bedtime or waking at 2am: molars and canines are coming in, the brain is doing overnight groundwork ahead of the language explosion around 18 months, and some toddlers are still finishing the switch from two naps to one.

Molars and canines: why this teething pain is different

The front teeth that erupted earlier were mostly a fussiness problem. Parents and pediatricians describe this later teething pain differently: a duller, more persistent ache that seems worse lying flat, sometimes with drooling, gum-rubbing, or a dip in appetite. That's why a toddler who "slept through the night for months" can suddenly wake up screaming.

One thing worth knowing: the folk wisdom and the objective data don't fully agree here. Teething and disrupted sleep are commonly reported together, and one Sleep Foundation review notes over 80% of teething infants and toddlers experience some sleep disturbance.⁴ But the best objective evidence doesn't fully back how dramatic that feels in the moment: a 2025 study using overnight video monitoring on 849 infants found no significant difference in objective sleep metrics between teething and non-teething nights, despite more than half of parents reporting a disturbance.⁵ Treat molars-disrupt-sleep as real and parent-reported, not objectively proven, and talk to your pediatrician about pain management rather than assuming a schedule fix will solve it. Pain relief helps. A new wake window won't.

The American Academy of Pediatrics sets a low bar for what teething alone explains: it "occasionally may cause mild irritability," a slight temperature rise, drooling, and a desire to chew on something hard. The AAP is direct that a genuinely miserable child is likely dealing with something else — "If your child seems particularly miserable or has a fever higher than 101 degrees Fahrenheit (38.3 degrees Celsius), it's probably not from teething." That is the practical dividing line: mild fussiness around a cutting tooth is teething; a toddler inconsolable night after night deserves a pediatrician's look, not a molar explanation.

The mid-night babbling that means nothing is wrong

If you've heard your toddler talking, babbling, or "singing" over the monitor at night, nothing is wrong. Research on infants this age (14 to 17 months) found new words learned during the day get consolidated overnight, protected from being overwritten by what your toddler already knows.⁶ Sleep-talking is common in young children and generally considered harmless.⁷ Your toddler is mostly asleep. Don't go in. They'll settle on their own.

One parent on r/sleeptrain described the roughest three weeks they could remember with a 17-month-old who had cut five teeth in that span — three first molars, a canine, and a bottom front tooth — waking between 10pm and midnight screaming, then again between 2 and 4am with the same cry (r/sleeptrain, December 2023).

By 17 months, most toddlers have also consolidated to one nap, though some still bridge between one and two naps day to day. That bridging is normal variability, not a broken schedule.

How Much Sleep Does a 17-Month-Old Need, and What Do the Wake Windows Look Like?

Three separate numbers matter here, and they don't always add up cleanly:

• Total sleep: 11 to 14 hours across 24 hours, per the CDC and WHO.¹
• Night sleep: 10 to 12 hours, per the NHS.² A long night plus a long nap can occasionally push slightly past that 11 to 14 hour ceiling, which is normal overlap, not a contradiction.
• Nap: one consolidated midday nap of 2 to 3 hours, starting around 12:00 to 12:30pm.

For a broader look at these totals by age, see is my baby getting enough sleep, sleep totals by age, and nap schedule by age.

Most competing schedule guides print one flat wake-window number and stop. In practice, a toddler still bridging between one and two naps runs a noticeably different day than one who's fully consolidated:

	One consolidated nap (typical by 17 months)	Still bridging on two naps
Nap count	1	1 to 2, day-dependent
Nap timing	~12:00 to 12:30pm start	Morning nap plus a shorter afternoon nap
Nap duration	2 to 3 hours	Shorter, more variable
Wake window before first sleep period	~5 hours	3 to 4 hours
Wake window(s) between/after	~5.5 hours to bedtime	3 to 4 hours between naps and before bedtime
Typical bedtime	7:00 to 8:00pm	Often earlier; use a 6:00 to 6:30pm safety-net bedtime on short or refused-nap days

For the full breakdown at every age, see wake windows by age.

One safe sleep reminder: keep your toddler in the crib until they're climbing out unsafely (chest above the rail), rather than moving to a bed proactively at this age.³

The 2-to-1 nap transition, briefly

The readiness window for dropping the second nap runs 13 to 18 months, averaging around 15 months. By 17 months, most toddlers have made the switch, though some still bridge day to day. Mid-transition, a short 10 to 15 minute catnap, often in the car or stroller, can bridge to bedtime without an overtired meltdown. For the full walkthrough, see 2-to-1 nap transition.

What Does a Sample 17-Month-Old Daily Schedule Look Like?

By 17 months, your toddler's circadian rhythm is well established, so clock-anchored times work as well as calculating from wake windows. Both schedules below assume a 6:30 to 7:00am wake time. Feeding is simple at this stage: 3 meals plus 2 to 3 snacks anchor the day, and milk is now a beverage with meals rather than a sleep-driving feed. If you're mapping out schedules at other ages, the 3-month, 6-month, and 9-month guides cover how much these numbers shift earlier on.

Sample schedule: one consolidated nap

• 6:30am, Wake
• 7:00am, Breakfast
• 9:30am, Morning snack
• 12:00 to 12:30pm, Lunch, then nap start (~5 hour wake window from wake)
• 2:30 to 3:00pm, Nap ends (2 to 3 hour nap)
• 3:00pm, Wake, afternoon snack
• 5:30pm, Dinner
• 6:45pm, Begin bedtime routine
• 7:15 to 7:30pm, Bed (~5.5 hour wake window from nap end)

Sample schedule: bridging on two naps

• 6:30am, Wake
• 7:00am, Breakfast
• 9:30 to 10:00am, Morning nap start (3 to 4 hour wake window)
• 10:30 to 10:45am, Morning nap ends (short)
• 12:00pm, Lunch
• 1:30 to 2:00pm, Afternoon nap start (3 to 4 hour wake window)
• 2:45 to 3:15pm, Afternoon nap ends
• 5:30pm, Dinner
• 6:15pm, Begin bedtime routine
• 6:30 to 6:45pm, Bed (an earlier safety-net bedtime given the shorter, split naps)

If the afternoon nap gets refused entirely, skip straight to the 6:00 to 6:30pm safety-net bedtime rather than pushing through to a normal one.

A consistent, short wind-down (bath or a diaper change, one or two books or a song, dim lights, into a sleep sack) of about 15 to 30 minutes makes either schedule easier, and a predictable routine like this is linked to better sleep onset and fewer night wakings.⁸

Why Is My Toddler Suddenly Waking Up Screaming, or Talking, at Night?

Here's the simplest way to tell them apart: a true schedule problem repeats nightly around the same wake-window mismatch, like consistent bedtime resistance or nap refusal. Teething pain and normal sleep-talk are more erratic, and they resolve on their own.

Pattern	What it looks like	What to do
Schedule mismatch	Repeats nightly; consistent bedtime resistance or nap refusal tied to wake-window timing	Adjust the wake window or nap timing (see above); track for a few days before changing again
Teething pain (molars or canines)	Sudden, inconsolable screaming; worse lying flat; may include drooling or gum-rubbing; erratic across a few nights, then resolves	Talk to your pediatrician about age-appropriate pain management; don't sleep-train through it
Mid-night babbling or "singing"	Talking, babbling, or singing over the monitor, often mid-sleep; toddler settles again on their own	Don't intervene; this is normal language practice ahead of the language explosion

Teething is the most common driver of a sudden, one-off screaming night at this age, but always rule out illness or an ear infection with your pediatrician if pain-like waking doesn't resolve within a few nights.⁹

What about the 18-month regression?

A separate, later disruption sometimes shows up around 18 months: driven by separation anxiety and a language leap, it typically looks like a toddler standing in the crib screaming for a parent, rather than the molar or sleep-talk pattern covered here.¹⁰ It's real, just not the same thing covered in this article. It's also a different pattern than the developmental disruptions that show up earlier, like the 4-month sleep regression or the 8-month sleep regression, which have their own drivers and timelines.

How Do You Know the Schedule Itself Needs an Adjustment?

• Overtired signs: bedtime resistance starting well before bedtime, early morning waking before 6:00am, hyperactive or "wired" behavior before sleep, or naps under 60 minutes with fussiness on waking.
• Undertired signs: a long time falling asleep at nap or bedtime, cheerfully resisting the nap outright, or split-night waking with your toddler wide awake and happy.
• Bridge-to-one-nap completion signs: the morning nap refused consistently, not just occasionally, or two-nap days pushing bedtime past 8:30pm for more than a week or two.
• When to call your pediatrician: consistent inconsolable night waking that doesn't track with the teething-versus-language pattern above, snoring or pauses in breathing during sleep, or any loss of previously acquired skills (these warrant a same-week visit, not a wait-and-see approach, since the earlier they're caught the easier they are to address).

For more on spotting these patterns, see signs of an overtired toddler.

What This Means for You Tonight

• If your toddler is screaming and it's sudden, check for teething signs first (drooling, gum-rubbing, worse when lying flat) before assuming the schedule broke. Talk to your pediatrician about pain management.
• If your toddler is babbling or "singing" over the monitor, don't go in. This is normal, and they'll settle themselves.
• If the disruption repeats nightly at the same point, that's the schedule, not teething or language. Adjust the wake window by 15 to 30 minutes and hold it for a few days before changing again.
• If naps are short or refused on a given day, use the 6:00 to 6:30pm safety-net bedtime instead of pushing through to the normal one.

More by age: 16-month sleep schedule · 18-month sleep schedule · every age in one place

Frequently Asked Questions

How many naps should a 17-month-old take?

Most 17-month-olds take 1 consolidated nap of 2 to 3 hours, though some still bridge between one and two naps depending on the day. The readiness window for dropping the second nap runs 13 to 18 months, averaging around 15 months, and bridging during that window is normal. If your toddler is on two shorter naps some days and one longer nap on others, that usually settles within a few weeks.

What time should a 17-month-old go to bed?

On a typical one-nap day, bedtime falls between 7:00 and 8:00pm, driven by the roughly 5.5 hour wake window after the nap ends. On short or refused-nap days, move to an earlier 6:00 to 6:30pm safety-net bedtime instead. Pushing through to the usual bedtime on a bad nap day tends to backfire into an overtired, harder-to-settle night.

Why does my 17-month-old suddenly wake up screaming at night?

The most common cause at this age is teething pain — first molars finishing or canines starting — a dull, positional ache that's worse lying flat, rather than a broken schedule. It's commonly reported by parents and recognized by pediatricians, though not precisely proven as a sleep-disrupting mechanism.⁴ ⁵ Check for drooling or gum-rubbing, and talk to your pediatrician about pain management. A pattern repeating at the same wake window each night points to the schedule instead.

Is it normal for a toddler to talk or babble in their sleep at this age?

Yes. Overnight babbling or "singing" over the monitor around 17 months lines up with the brain doing overnight language consolidation ahead of the language explosion around 18 months.⁶ Sleep-talking is common in young children and generally considered harmless.⁷ Don't intervene. Your toddler is mostly asleep and will self-settle.

How long does the 2-to-1 nap transition take?

The readiness window runs 13 to 18 months, averaging around 15 months. By 17 months, most toddlers have completed the switch, though bridging for weeks at a time is still normal. On short-nap bridging days, use the earlier 6:00 to 6:30pm safety-net bedtime to avoid an overtired evening.

What are 17-month-old wake windows?

On a one-nap schedule, wake windows run about 5 hours before the nap and 5.5 hours after, to bedtime. Toddlers still bridging on two naps run shorter windows of about 3 to 4 hours between sleep periods.

Sources

1. Centers for Disease Control and Prevention. "Positive Parenting Tips: Toddlers (1-2 Years)." https://www.cdc.gov/child-development/positive-parenting-tips/toddlers-1-2-years.html
2. NHS. "Safer Sleep for Babies and Toddlers, 1-2 Years." https://www.wchc.nhs.uk/wp-content/uploads/2019/12/SaferSleep_1-2years.pdf
3. Moon RY, MD, FAAP. "Big Kid Beds: When to Switch From a Crib." American Academy of Pediatrics / HealthyChildren.org. Updated August 1, 2022. https://www.healthychildren.org/English/healthy-living/sleep/Pages/Big-Kid-Beds-When-To-Make-the-Switch.aspx
4. Sleep Foundation. "Do Babies Sleep More When Teething?" Author Lucy Bryan; reviewed by Nilong Vyas, MD, MPH. Updated July 15, 2025. https://www.sleepfoundation.org/baby-sleep/do-babies-sleep-more-when-teething
5. Kahn M, Lucchini M, Oster E, Thakur S, Waugh M, Barnett N. "Does Teething Disrupt Infant Sleep? A Longitudinal Auto-Videosomnography Study." Journal of Pediatrics. 2025;279:114461. https://pubmed.ncbi.nlm.nih.gov/39788183/ (Note: 3 of 6 authors are consultants to Nanit, whose auto-videosomnography technology was used in this study.)
6. Friedrich M, Mölle M, Friederici AD, Born J. "Sleep-dependent memory consolidation in infants protects new episodic memories from existing semantic memories." Nature Communications. 2020;11(1):1298. https://pubmed.ncbi.nlm.nih.gov/32157080/
7. Sleep Foundation. "Sleep Talking: What Is Somniloquy?" Author Eric Suni; reviewed by Alex Dimitriu, MD. Updated July 25, 2025. https://www.sleepfoundation.org/parasomnias/sleep-talking
8. Sleep Foundation. "Perfecting Your Child's Bedtime Routine." Author Danielle Pacheco; reviewed by Ealena Callender, MD, MPH, FACOG. Updated July 23, 2025. https://www.sleepfoundation.org/children-and-sleep/bedtime-routine
9. American Academy of Pediatrics / HealthyChildren.org. "Teething Pain Relief." Updated July 9, 2025. https://www.healthychildren.org/English/ages-stages/baby/teething-tooth-care/Pages/Teething-Pain.aspx
10. NHS. "Separation Anxiety." https://www.nhs.uk/baby/babys-development/behaviour/separation-anxiety/

Track Teething, Naps, and Everything In Between Without the Guesswork

Telling a schedule problem apart from teething pain or normal sleep-talk is hard at 2am with nothing to compare against. Pelio logs sleep patterns automatically and flags when a disruption is repeating (a schedule issue) versus a one-off (more likely teething or a developmental leap).

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