When to drop to one nap: the 2-to-1 nap transition and 12–36 month schedules
When to drop to one nap (13–18 months), signs your toddler is ready, how to transition in 10 days, 15 and 18 month sleep schedules, and when naps stop.
Quick answer: Most toddlers are ready to drop from two naps to one midday nap between 13 and 18 months of age, with 14 to 16 months being the most common turning point. Once on a single afternoon nap starting around 12:30 pm, toddlers stay awake 5 to 5.5 hours in the morning and 4.5 to 5.5 hours before bed, logging 11 to 14 hours of total sleep per 24 hours until naps gradually phase out between ages 3 and 4.
13–18
Months when 2 → 1 nap happens
Average is 14–16 months; nap strikes at 10–12 months are almost always a temporary regression.
5–6
Hours awake before and after the nap
A single post-lunch nap splits the day into two roughly equal 5–5.5 hour windows.
11–14
Hours total sleep in 24 h (1–2 yr)
AASM consensus for toddlers aged 1 to 2 years (10–13 hours at ages 3 to 5).
3–4
Years when the last nap drops
Replace the afternoon nap with 45–60 minutes of quiet room time once bedtime passes 8:30 pm.
Dropping from two naps to one afternoon nap is the biggest schedule shift of early childhood: in a single fortnight, your toddler’s morning wake window jumps from 3.25 hours to 5 hours. Do it two months too early (during the 10-to-12-month motor regression) and you get cranky 45-minute naps and 5:00 am wake-ups; time it right between 14 and 18 months and you gain a single restorative 2-hour midday break that lasts until preschool.
Below is how to tell true 1-nap readiness apart from a temporary nap strike, how 13–15 month, 18–24 month, and 2–3 year toddler schedules compare, and a 10-day step-by-step plan to move the nap to 12:30 pm without meltdowns.
How do 13–15 month vs. 18–24 month vs. 2–3 year toddler schedules compare?
Comparing a newly transitioned 13-to-15-month 1-nap schedule versus an 18-to-24-month schedule versus a 2-to-3-year schedule shows how the single post-lunch nap first lengthens to 2–2.5 hours, then gradually gets capped at 60–90 minutes by age 2.5 to 3 to protect a 7:30 pm–8:00 pm bedtime.
| Metric | 13–15 Months (New 1-Nap) | 18–24 Months (Established 1-Nap) | 2–3 Years (Late Toddler / Preschool) |
|---|---|---|---|
| Morning wake window | 4.5–5 hours | 5–5.5 hours | 5.5–6.5 hours |
| Midday nap timing & length | 12:00 pm – 02:00 pm (1.75–2.5 hr) | 12:30 pm – 02:30 pm (1.5–2.25 hr) | 01:00 pm – 02:15 pm (cap at 60–75m, or quiet time) |
| Afternoon window before bed | 4.25–4.75 hours | 4.75–5.25 hours | 5.5–6 hours |
| Target night sleep | 11–11.5 hours | 10.5–11.5 hours | 10.5–11.5 hours |
| Total 24-hour sleep (AASM) | 11–14 hours | 11–14 hours | 10–13 hours |
You can test your toddler’s wake time in our wake window calculator or compare worked toddler routines on our sample sleep schedules page.
What are the true signs your toddler is ready to drop to one nap?
Before dropping the second nap, verify that you have already capped Nap 1 at 45 to 60 minutes (as outlined in our 9 to 12 month sleep schedule). If your child is at least 13 to 14 months old and shows two or more of these signs for 10 to 14 days straight, they are genuinely ready for one nap:
- Consistent Nap 2 refusal. Even when Nap 1 ends by 10:45 am, your toddler stands, sings, and plays through the entire afternoon nap hour for 10+ days.
- Split nights (awake and cheerful for 60–90 minutes at 2:00 am). Two naps are providing more daytime sleep than their 24-hour sleep budget can support, leaving a hole in the middle of night sleep.
- Bedtime pushed past 8:30 pm or 5:00 am early wakes. Fitting three wake windows (3.5 + 3.75 + 4 hours = 11.25 hours of awake time) plus two naps into the day becomes mathematically impossible without shrinking night sleep below 10 hours.
- Easy, cheerful 4.5-hour mornings. When you take your toddler to the park in the morning, they cruise past 11:00 am without rubbing their eyes or melting down over their snack cup.
What does a worked 15-month vs. 18-to-24-month daily schedule look like?
Here are the side-by-side daily clock timetables for a newly transitioned 14-to-15-month-old and an established 18-to-24-month-old starting at 7:00 am:
| Clock time | 14–15 Month Schedule (5 / 4.5 hr windows) | 18–24 Month Schedule (5.5 / 5 hr windows) |
|---|---|---|
| 07:00 am | Morning wake-up, milk in a cup, breakfast at 7:30 am | Morning wake-up, breakfast with family at 7:30 am |
| 09:30 am | Morning snack + outdoor physical play (crucial for energy) | 09:45 am: Morning snack + playground or walk |
| 11:15 am | Early lunch at the table | 11:45 am: Lunch at the table |
| 12:00 pm – 02:00 pm | Single Midday Nap (2 hours) | 12:30 pm – 02:30 pm: Single Midday Nap (2 hours) |
| 02:15 pm | Afternoon snack + milk cup | 02:45 pm: Afternoon snack + water/milk |
| 05:15 pm | Family dinner | 05:30 pm: Family dinner |
| 06:00 pm – 06:30 pm | Bath, pajamas, brush teeth, 2 books, into cot at 6:30 pm | 06:45 pm – 07:30 pm: Bath, books, into cot at 7:30 pm |
How do you transition from 2 naps to 1 nap in 10 days (step-by-step)?
Instead of jumping straight from a 9:45 am morning nap to a 12:30 pm afternoon nap overnight, nudge the morning nap later by 30 minutes every 3 days while using an early bedtime as your safety net:
- Days 1–3: Push Nap 1 to 11:00 am. Take your toddler outside in natural light between 9:30 am and 10:30 am (when their old Nap 1 sleepy dip hits), offer an early lunch or hearty snack at 10:30 am, and put them down at 11:00 am.
- Days 4–6: Push the nap to 11:30 am. Let them sleep up to 2–2.5 hours. If the nap ends before 1:15 pm, offer either a 15-minute stroller catnap at 3:45 pm OR go straight to a 6:15 pm bedtime.
- Days 7–9: Push the nap to 12:00 pm. Serve full lunch at 11:15 am so hunger never wakes them up after one 45-minute sleep cycle.
- Day 10 onward: Settle at 12:15 pm–12:30 pm. For most 18-to-30-month-olds, 12:30 pm to 2:30 pm is the circadian sweet spot that balances morning and afternoon sleep pressure.
- Allow one 2-nap recovery day per week in Weeks 1–2. If your toddler wakes at 5:45 am or takes only a 45-minute nap for 3 days straight, offer a regular 2-nap day on Sunday to clear accumulated sleep debt, then resume the 1-nap schedule on Monday.
What about the 18-month sleep regression and dropping the final nap at age 3?
Around 18 months, language explosions, canine/molar teething, and a surge of toddler independence trigger the 18-month sleep regression, where a formerly strong sleeper shouts “No nap!” at 12:30 pm. Hold the boundary calmly: keep your child in a cot (in an arms-free sleep sack—never rush to a toddler bed before age 2.5 to 3 unless they are climbing out and lowering the mattress did not stop it), keep the routine identical, and refer to our sleep training methods compared guide or wake windows by age chart if bedtime protests escalate.
When do toddlers stop napping completely (and how does quiet time work)?
Between ages 3 and 4, most preschoolers reach the point where even a 40-minute afternoon nap pushes bedtime past 8:30 pm or 9:00 pm and shrinks nighttime sleep below 10 hours. The American Academy of Sleep Medicine recommends 10 to 13 hours of total 24-hour sleep for 3-to-5-year-olds, which is most reliably met with an uninterrupted 11-to-11.5-hour night once naps end.
When your 3-year-old consistently lies awake past 8:30 pm on nap days, replace the afternoon nap with 45 to 60 minutes of structured quiet time in their bedroom (board books, puzzles, or calm audio stories in dim light) and bring bedtime forward to 6:45 pm–7:00 pm for the first month. All schedules and tips in this article are educational information and are not medical advice; consult your paediatrician if your toddler snores, breathes through their mouth at night, or has health concerns.
Questions
At what age do babies usually drop to one nap?
Most toddlers transition from two naps to one nap between 13 and 18 months of age, with the median sitting right around 15 months. Unless daycare requires an earlier move at 12 months, holding onto two naps (by capping Nap 1 at 45–60 minutes) until 14+ months makes the transition much smoother.
How do I know my toddler is truly ready for one nap vs. just having a regression?
Your child is ready when they are at least 13 to 14 months old AND for 10 to 14 consecutive days they either play happily through Nap 2 despite a 45-minute capped Nap 1, take a long Nap 1 that pushes Nap 2 past 3:15 pm and bedtime past 8:30 pm, or wake up for 90 minutes in the middle of the night ('split nights').
How long does the 2-to-1 nap transition take?
The 2-to-1 nap transition is the largest wake-window jump of childhood—morning awake time leaps from 3.25 hours to 5+ hours—so it typically takes 2 to 4 weeks for the single midday nap to lengthen consistently to 2 hours.
What is the ideal 1-nap schedule for a 15-month, 18-month, or 2-year-old?
With a 7:00 am wake-up, offer lunch at 11:30 am, put your toddler down for their single nap from 12:30 pm to 2:30 pm (5.5-hour morning window), and place them in bed at 7:30 pm (5-hour afternoon window). During the first two weeks of the transition, start the nap slightly earlier at 11:45 am–12:00 pm with a 6:45 pm bedtime.
Why is my toddler waking up crying after only 45 minutes on a 1-nap schedule?
When you first stretch a 14-month-old's morning window to 4.5 or 5 hours, cortisol builds up and often interrupts the nap at the first 45-minute cycle bridge. Move the nap 20 minutes earlier (to 11:45 am or 12:00 pm) for a week and offer a 6:30 pm early bedtime while their stamina catches up.
When do toddlers stop napping completely, and how much sleep does a 3-year-old need?
According to the American Academy of Sleep Medicine, 1-to-2-year-olds need 11 to 14 hours of total sleep in 24 hours, while 3-to-5-year-olds need 10 to 13 hours. Most children drop their final afternoon nap between 3 and 4 years old when napping past 2:00 pm pushes sleep onset past 8:30 pm–9:00 pm.
Sources
- Recommended amount of sleep for pediatric populations: a consensus statementAmerican Academy of Sleep Medicine (Paruthi et al., J Clin Sleep Med, 2016)
- Normal sleep patterns in infants and children: a systematic review of observational studiesGalland et al., Sleep Medicine Reviews, 2012
- Bedtime routines for young children: a dose-dependent association with sleep outcomesMindell et al., Sleep, 2015
This guide is educational and does not replace advice from your paediatrician, health visitor or midwife.