Toddler wake windows range from 3 to 6 hours between sleeps, dramatically longer than baby wake windows. Most toddlers transition from 2 naps to 1 between 13 and 18 months, with the sweet spot around 15 to 18 months. On a 1-nap schedule, the ideal wake windows are typically 5 to 6 hours before the nap and 5 to 6 hours from the end of the nap to bedtime, with the nap falling roughly in the middle of the day. The transition takes 2 to 4 weeks and is often messier than parents expect.
Why toddler wake windows are so different from baby wake windows
If you got your baby's sleep sorted through the first year and then hit the toddler stage and everything fell apart again, you are not alone. Toddler sleep looks completely different from baby sleep, and the wake window structure is one of the biggest changes.
The core reason is stamina. A 6 month old baby can be comfortably awake for 2 to 3 hours before needing to sleep. An 18 month old toddler can be awake for 5 to 6 hours between the morning wake and the single afternoon nap. That is roughly triple the duration.
The reason wake windows lengthen so dramatically is neurological. As the brain matures, the circadian rhythm gets stronger, sleep pressure builds more slowly, and the toddler's ability to sustain wakefulness improves. A toddler who is capable of a 5 hour wake window who is put down after only 2 hours will refuse to nap, not because they are being difficult but because their body genuinely is not ready for sleep yet.
This is why the wake windows chart matters even more in the toddler stage than in the baby stage. Getting it wrong creates weeks of nap refusal, bedtime battles, and early morning wakes. Getting it right often resolves multiple sleep issues in a single week.
If you are just learning the wake windows framework or want the full picture from newborn through toddler, our full wake windows by age guide covers every stage.
Toddler wake windows by age
The numbers below are typical ranges. Every toddler is different. Some can handle the upper end of the range, some are more comfortable at the lower end. Adjust to your child rather than the chart.
12 months
Wake windows: 3 to 4 hours
Nap schedule: Usually 2 naps per day, one morning and one afternoon. The morning nap is usually 45 to 60 minutes, the afternoon nap 1 to 2 hours.
Bedtime: 6:30 to 7:30pm
At 12 months, most toddlers are still firmly on 2 naps. The transition to 1 nap is usually 3 to 6 months away. Signs of the 12 month sleep regression often show up here, especially around first steps and language development.
If you are seeing sudden sleep disruption at this age, our sleep regressions guide covers the 12 month regression specifically.
13 to 15 months
Wake windows: 3.5 to 4.5 hours
Nap schedule: Still mostly 2 naps, but the transition to 1 nap starts becoming visible in some toddlers. The morning nap often becomes shorter (30 to 45 minutes) and the afternoon nap sometimes gets fought.
Bedtime: 6:30 to 7:30pm
This is a transitional zone. Some toddlers are still 100 percent on 2 naps and doing well. Others start showing early signs of readiness for 1 nap. Do not rush the transition. Waiting until the signs are consistent for 2+ weeks is almost always the right call.
15 to 18 months
Wake windows: 4 to 5 hours (on 2 naps) or 5 to 6 hours (on 1 nap)
Nap schedule: This is where most toddlers make the 2 to 1 nap transition. The morning nap is dropped, and the afternoon nap shifts to a single midday nap of 1.5 to 2 hours.
Bedtime: 7 to 8pm on 1-nap days. Sometimes 6 to 6:30pm on days when the nap was short.
This is the sweet spot for the nap transition for most children. If your toddler is 15 to 18 months and showing consistent readiness signs, this is usually the right window to make the switch.
18 to 24 months
Wake windows: 5 to 6 hours
Nap schedule: 1 nap per day, typically 12pm or 12:30pm start, lasting 1.5 to 2 hours.
Bedtime: 7 to 8pm
By 18 months, almost all toddlers are on 1 nap. Total daytime sleep drops to around 2 hours. Total night sleep is around 11 hours. The 18 month sleep regression often disrupts this window with bedtime resistance and separation issues.
2 to 3 years
Wake windows: 5 to 7 hours
Nap schedule: Still 1 nap per day, though total nap length may drop to 1 to 1.5 hours.
Bedtime: 7 to 8pm
Most toddlers hold on to a single afternoon nap through age 3, and some until age 4. Dropping the nap entirely usually happens somewhere between 2.5 and 4 years old. Rushing this transition almost always creates worse night sleep in the short term.
The 2 to 1 nap transition
This is the single biggest schedule change of the toddler years. Done well, it results in longer, more restorative single naps and better night sleep. Done poorly, it creates weeks of overtiredness, short naps, and early morning wakes.
When to make the transition
The 2 to 1 nap transition typically happens between 13 and 18 months, with 15 to 18 months being the most common window. Some toddlers are ready earlier, some later.
Do not make the transition based on age alone. The signs of readiness matter far more than the number on the calendar.
The signs your toddler is ready
Look for these signs, consistently, for at least 2 weeks before making the transition.
- Fighting one of the naps every day (usually the afternoon nap)
- Taking a very short morning nap (30 minutes or less) but then unable to fall asleep for the afternoon nap
- Falling asleep late at night because the afternoon nap ran too close to bedtime
- Bedtime battles that were not happening before
- Early morning wakes appearing consistently (before 6am)
- The morning wake window naturally stretching towards 4 to 5 hours before your toddler shows any sleep cues
- Complete refusal of the afternoon nap for 3 to 5 days in a row
The single strongest indicator is consistent refusal of one specific nap for at least 2 weeks. Occasional refusal is normal. Consistent refusal usually means readiness.
Common signs that look like readiness but are not
This is where most parents get tripped up. A few situations look like the toddler is ready for 1 nap but are actually something else.
A sleep regression. The 12 month regression, especially, can look like nap readiness. Sleep gets disrupted, naps get fought, everything feels off. The difference is that regressions resolve within 2 to 6 weeks, while genuine 1-nap readiness signs persist and get more pronounced over time. Wait 3+ weeks before deciding.
Teething or illness. Both can disrupt naps in ways that look like readiness. Rule these out first.
A recent life change. New sibling, new house, new daycare, new caregiver. Any major change can disrupt sleep for a couple of weeks in ways that look like nap readiness. Wait for the disruption to settle before making schedule changes.
Wake windows that are just wrong. If your toddler's wake windows have not been updated as they have grown, they may be undertired at nap times. Try extending the wake windows slightly before dropping the nap.
A one-off phase. Some toddlers have a "false start" period where they seem to be ready for 1 nap for a week or two, then settle back into 2 naps happily. If the signs are inconsistent, wait.
The general rule: if you are unsure whether your toddler is ready, they probably are not. Waiting 2 to 4 more weeks and reassessing is almost always the right call.
Two approaches to the transition
There are two main ways to make the 2 to 1 nap transition. Neither is universally right. Choose based on your toddler.
The gradual approach. Shift the morning nap 15 to 30 minutes later every few days. As the morning nap moves later, the afternoon nap becomes shorter, then eventually gets dropped entirely. The morning nap keeps moving later until it becomes the single midday nap.
Best for: younger toddlers (13 to 15 months), toddlers who are on the edge of readiness, toddlers who become highly overtired when a nap is missed.
The immediate approach. From one day to the next, drop the morning nap entirely and offer a single nap at 12 or 12:30pm. Use an early bedtime (6 to 6:30pm) for the first 1 to 2 weeks to compensate for the shorter total daytime sleep.
Best for: older toddlers (15+ months), toddlers who consistently refuse the afternoon nap, toddlers who are already awake for 4+ hours before the morning nap without showing tired cues.
Whichever approach you choose, the transition typically takes 2 to 4 weeks to fully stabilise.
The typical 1-nap schedule
Once your toddler is fully on 1 nap, the day usually settles into something like this.
- 7am: Wake up
- 12pm or 12:30pm: Nap start
- 1:30pm to 2:30pm: Nap end (aim for 1.5 to 2 hours)
- 7pm to 7:30pm: Bedtime
The nap sits roughly in the middle of the day, with 5 to 6 hours of wake time before and 5 to 6 hours after.
Bedtime is often earlier than parents expect at first. Toddlers on 1 nap who go to bed at 8:30 or 9pm are often chronically overtired, which shows up as bedtime battles, night wakings, and early morning wakes. Earlier bedtime (7 to 7:30pm) usually resolves these issues.
Handling the transition weeks
The 2 to 4 weeks of transition are the messy part. A few things help.
Use an early bedtime on short-nap days. If the single nap is only 45 to 60 minutes, bring bedtime forward to 6 to 6:30pm. Do not wait for the "normal" bedtime. An early bedtime prevents the overtiredness cycle from taking hold.
Focus on active mornings. The hardest part of the transition is stretching the morning wake window. If your toddler has typically napped 2 hours after waking, they will show tired cues at 2 hours because their body is used to napping then. Fill the morning with active play, outdoor time, and engaging activities to stretch the wake window comfortably.
Do not oscillate day to day. Some parents flip between 2 naps and 1 nap based on how each day is going. This makes the transition much harder. Pick an approach and commit for at least 2 weeks. If it is clearly not working after 2 weeks of consistency, then reassess.
Keep the wind-down routine consistent. Whatever nap routine and bedtime routine you had, keep it. Cues matter more during the transition, not less.
Prioritise the nap over the morning schedule. If the transition is going badly, focus on getting the single nap to at least 1 hour. That is more important than the exact timing of the day.
The most common mistakes parents make
A few patterns come up repeatedly in the 2 to 1 nap transition. If it is not working, check for these.
Dropping the nap too early. The single most common mistake. If your toddler was still comfortably taking 2 naps a week ago, they probably were not ready to drop yet. Signs need to be consistent for at least 2 weeks before making the switch.
Trying to force the nap at a specific clock time from day 1. In the first week, the nap timing will shift as your toddler adjusts. Aim for a target window (12 to 1pm) rather than an exact time.
Not adjusting bedtime. If your toddler was going to bed at 7:30pm on 2 naps, they usually need bedtime shifted 30 to 60 minutes earlier during the transition to prevent overtiredness. Once the transition stabilises, bedtime often shifts back.
Assuming a short nap means readiness for no nap. Toddlers do not drop the nap fully until 2.5 to 4 years old. A 45 minute nap at 18 months is a nap that is too short, not a signal to drop the nap entirely. Fix the schedule and the environment.
Filling the day with activities that overtire. During the transition, some activities are calming and some are activating. If your toddler is at a busy playgroup all morning followed by lunch and then straight into the cot, they will often be so overstimulated they cannot fall asleep. Build in a 15 to 20 minute calm-down period before the nap.
What to do when the nap gets short
Once your toddler is on 1 nap, the goal is a solid 1.5 to 2 hour nap. Some toddlers get there quickly. Others go through weeks of 45 to 60 minute naps before the sleep consolidates.
Fixes for short naps:
Check the timing. If the nap is starting too early (11am or earlier for a 15+ month old), the wake window may be too short and your toddler is under-tired. Try shifting the nap 15 to 30 minutes later.
Check the environment. Blackout curtains, white noise, and a cool room matter more for toddler naps than they did for baby naps. Toddlers are more easily woken by environmental sound and light.
Check the wind-down. Toddlers need a calm, consistent 5 to 10 minute wind-down before naps. Just like at bedtime.
Check for early wake times. A toddler waking at 5:30am who naps at 11:30am has had a 6 hour wake window. They are often overtired going into the nap. Fix the early morning wake with a slightly later bedtime and better sleep environment.
Our best white noise for babies guide covers exactly what type of white noise works for toddler naps. Our LullaHush™ portable white noise machine runs continuously without timer cut-offs, which matters for toddlers who are easily woken by mid-nap silence.
What to do when bedtime becomes a battle
Toddler bedtime resistance is different from baby bedtime resistance. It is often behavioural, not physical.
Signs of physical bedtime issues (which are schedule problems):
- Fighting bedtime for 45+ minutes with genuine distress
- Waking multiple times overnight
- Early morning wakes
- Cranky throughout the day
Signs of behavioural bedtime issues (which are toddler development):
- Delaying tactics: "one more story," "I need water," "I need to wee"
- Wanting to negotiate
- Calling out from the cot repeatedly
- Getting out of bed (once in a toddler bed)
- Testing limits
For physical issues, fix the schedule. Check wake windows, check the wake time from the nap, adjust bedtime accordingly.
For behavioural issues, hold clear, warm boundaries. Consistent routine, consistent bedtime, consistent responses. Toddlers thrive on predictable structure even while they push against it.
If your toddler is showing both physical and behavioural bedtime issues, address the physical piece first. It is very hard to hold boundaries with an overtired toddler.
Toddler wake windows and behaviour
One of the underappreciated points about wake windows in the toddler years is that they directly affect daytime behaviour.
A toddler with correct wake windows is generally calmer, more able to regulate emotions, more able to handle frustration, more communicative, and less prone to meltdowns. A toddler with wake windows that are too long is often exactly the opposite: fussier, more emotional, harder to reason with, more likely to melt down over small things.
If your toddler's daytime behaviour has become significantly harder recently, before looking at behavioural interventions, check the sleep schedule. Often the "behavioural" issue is actually a schedule issue in disguise.
The sleep environment for toddlers
The sleep environment continues to matter enormously into the toddler years, sometimes more than parents expect.
Darkness. Toddlers are more visually stimulated than babies. Any light in the room can delay sleep or cause early wakes. Full blackout is worth the investment.
Temperature. 20 to 22 degrees Celsius. Toddlers tend to run warmer than babies, so err slightly cooler.
Continuous white noise. Still important. Toddlers are woken more easily by environmental sounds than babies because they have more mature hearing and more awareness of their surroundings.
A consistent sleep space. Consistency of environment matters even more in the toddler years. If your toddler naps in one place at daycare and another place at home, the transition is harder. Try to keep the sleep space as consistent as possible.
Bed vs cot. Most toddlers should stay in the cot until at least 2.5 to 3 years old. Transitioning to a toddler bed too early creates sleep disruption for most children.
Our LullaBear™ provides gentle rhythmic patting for supervised settling and is designed for continued use into the toddler years. Many families keep the bear as part of the sleep environment long past the newborn stage.
When to seek help
Most toddler sleep issues respond to schedule adjustments and environmental fixes. Some situations warrant outside help.
- Persistent nap refusal that is not responding to schedule adjustments
- Sleep issues that have lasted more than 6 weeks despite consistent effort
- Sleep disruption alongside signs of illness (persistent snoring, gasping during sleep, unusual daytime sleepiness)
- Family functioning significantly affected
- Persistent daytime behaviour issues that may be sleep-related
Your GP, health visitor, or a paediatric sleep consultant can help. If you are dealing with exhaustion alongside toddler sleep struggles, our post on postpartum exhaustion applies past the first year too.
Free download: the Calm Baby Guide
We built a free 14-page guide for parents working through baby and toddler sleep at every age. Plain language, no fluff. You can download the Calm Baby Guide here, no purchase required.
Frequently asked questions
When should my toddler drop to 1 nap?
Somewhere between 13 and 18 months for most toddlers, with 15 to 18 months being the most common window. Base the decision on consistent readiness signs, not age alone. Wait until you have seen the signs for at least 2 weeks before making the switch.
What are the signs my toddler is ready to drop to 1 nap?
Consistent refusal of one nap (usually the afternoon), taking very short morning naps, bedtime battles that were not happening before, early morning wakes appearing, and the morning wake window naturally stretching to 4 to 5 hours before your toddler shows tired cues.
How long does the 2 to 1 nap transition take?
Most transitions take 2 to 4 weeks to fully stabilise. The first week is often the messiest. Some toddlers adjust in 10 to 14 days. Others take 4 to 6 weeks.
What time should my toddler nap on a 1-nap schedule?
Typically 12pm to 12:30pm, lasting 1.5 to 2 hours. The nap should sit roughly in the middle of the day, with 5 to 6 hours of wake time before and 5 to 6 hours after.
My toddler is 14 months and refuses the afternoon nap. Should I drop to 1 nap?
Not necessarily. Wait 2 to 3 weeks and see if the refusal is consistent. Occasional refusal is normal. Persistent refusal usually means readiness. Also rule out teething, illness, and the 12 month sleep regression first.
What should bedtime be during the nap transition?
Often 30 to 60 minutes earlier than normal. If your toddler was going to bed at 7:30pm on 2 naps, aim for 6:30 to 7pm during the transition. On days when the single nap was very short, an even earlier bedtime (6pm) helps prevent overtiredness.
My toddler naps for only 45 minutes on the new 1-nap schedule. What do I do?
Give it 2 to 3 weeks for the nap to consolidate. In the meantime, use an early bedtime on short-nap days. If after 3 weeks the nap is still consistently short, revisit the schedule. Usually the nap timing is off (too early or too late) or the wake window before the nap is wrong.
How long should a toddler nap last?
Aim for 1.5 to 2 hours of daytime sleep from age 15 months onwards, dropping gradually to 1 to 1.5 hours by age 2 to 3. If your toddler consistently naps longer than 2.5 hours, cap the nap to protect night sleep.
When do toddlers stop napping entirely?
Most toddlers drop the nap somewhere between 2.5 and 4 years old. Rushing this transition almost always creates worse night sleep in the short term. Hold the nap for as long as possible.
The bottom line
Toddler wake windows are dramatically longer than baby wake windows, and getting the timing right matters more, not less. Most toddlers make the 2 to 1 nap transition between 15 and 18 months, though some are ready earlier and others later. The transition takes 2 to 4 weeks and is often messier than parents expect.
The most reliable path through the toddler years is to follow the readiness signs rather than the calendar, use an early bedtime when the single nap is short, keep the wind-down routine consistent, and hold the sleep environment tight even as your toddler becomes more resistant to structure in other areas.
Sleep struggles in the toddler years are often behavioural, not just schedule-based. Toddlers push boundaries. This is normal. Warm and firm consistency wins.
Livvewell exists for the daily reality of every sleep stage, from the newborn weeks through toddlerhood. The tools that helped in the first year continue to work into the toddler years, and the underlying principles (right timing, right environment, consistent routines) do not change. What changes is the wake windows, the nap structure, and the emotional dynamics. This guide covers the first two. Your relationship with your toddler covers the third.