Month-by-month sleep guide
15-Month-Old Sleep Schedule
- ⏰ Wake window: 4.5–5.5 hours
- 🍼 Naps per day: 1–2
- 🌙 Bedtime: 7:00–8:30 PM
- 😴 Total sleep: 11–14 hours
Reviewed by the BabyNapCalc Editorial Team — our content is reviewed for accuracy against pediatric sleep guidance (AAP/NSF). This is general information, not medical advice.
Walking well, talking more, and right in the middle of nap-transition territory — here is the complete 15-month-old sleep schedule with wake windows and bedtime.
15-month-old sleep at a glance
Typical ranges for 15 months — every toddler is different, so treat these as a starting point.
4.5–5.5 h
Between sleep periods
Typical at 15 months
1–2
1–2 naps
Rest of sleep at night
11–14 h
Naps + night combined
Typical for this age
Sample 15-month-old schedule
An example 1-nap day with a 7:00 AM wake, built from this month’s wake windows. Use the mini calculator above with your real wake time.
12:00 PM – 1:30 PM
Nap 1
About 90 minutes
7:30 PM
Bedtime
End of the day
Sleep at 15 months
By 15 months, most toddlers are walking well — some are attempting their first confident runs — and the spoken vocabulary is expanding from a few words toward a dozen or more. Sleep-wise, this is prime nap-transition territory: wake windows of 4.5–5.5 hours, 11–14 hours of total sleep, and 1–2 naps a day. Many families find the transition happens gradually across 15 and 16 months rather than all at once, with a mix of one-nap and two-nap days.
Wake windows: 4.5–5.5 hours
Two-nap days live at the shorter end (about 4.5 hours between sleeps), while one-nap days stretch toward 5.5 hours with the nap anchored around midday. A useful rule: if the morning nap is consistently refused for more than a week, shift to one-nap days but keep a very early bedtime. If only the occasional nap is skipped, keep offering two and let your toddler decide day by day.
Navigating the nap transition
The transition works best as a gradual fade rather than a hard switch. Offer quiet time in the crib at the old morning-nap hour even on days the nap is skipped — rest still counts. Keep the midday nap from starting later than about 12:30–1 PM so it doesn't push bedtime past 8 PM. And expect some cranky late afternoons during the transition weeks; an early bedtime is the cure, not a later nap. The nap transitions guide has the full playbook, and the 16-month schedule covers what comes next.
Bedtime stays early
Whether your 15-month-old takes one nap or two, a bedtime between 7 and 8 PM works for a 6–7 AM wake. On one-nap days, don't be afraid of 6:30 PM — an early bedtime prevents the overtired spiral that shows up as night waking or 5 AM starts. The toddler bedtime calculator can fine-tune this from your actual wake time and nap length.
15-month-old sleep questions, answered
Quick answers to the questions parents ask most about sleep at 15 months.
How many naps does a 15-month-old need?
Most 15-month-olds are between 1 and 2 naps. The transition typically completes somewhere between 15 and 18 months. Follow your child's lead: offer two naps, accept one when it's refused for a week or more.
What is a good schedule for a 15-month-old?
Two-nap day: wake 7 AM, naps ~11 AM and ~3 PM, bedtime 7:30–8 PM. One-nap day: wake 7 AM, nap 12–2 PM, bedtime 7–7:30 PM.
Why is my 15-month-old waking up at 5 AM?
Early waking often means bedtime is too late (overtired) or the nap balance is off. Try moving bedtime 30 minutes earlier for a few days — counterintuitively, earlier bedtimes often fix early waking.
Should I cap my 15-month-old's nap?
Cap the afternoon nap so it ends by 4 PM on two-nap days. On one-nap days, most toddlers can sleep 1.5–2.5 hours without it hurting bedtime, as long as bedtime stays around 7–8 PM.
This page is a planning guide based on general pediatric sleep guidance, not medical advice. Every toddler is different — talk to your pediatrician with concerns about your child’s sleep.