Baby Sleep Schedule by Age: Wake Windows & Naps from 3 to 24 Months

Wake windows, number of naps, how much daytime sleep, when to drop a nap — baby sleep changes fast in the first two years, and what worked last month can stop working overnight. This baby sleep schedule by age gives you the typical ranges from 3 to 24 months at a glance, so you can see where your baby is and what's coming next.

How to use these ranges

They're ranges, not rules. Use them as a starting point and watch your baby's tired cues.
Wake windows matter most. A wake window is the time between waking from one sleep and starting the next. It's the number that most often explains short naps and difficult bedtimes.
Use corrected age if your baby was born before 37 weeks.
Night feeds can still be normal in the first months — talk to your pediatrician about your baby's needs.

Baby sleep schedule by age: 3 to 24 months

Age	Wake windows	Naps	Daytime sleep	Night sleep
3 months	1h15 – 1h30	4	4 – 5 hrs	10 – 12 hrs (with feeds)
4 months	1h30 – 2h	3 – 4	3.5 – 4.5 hrs	10 – 12 hrs (with feeds)
5 months	2h – 2h30	3	3 – 4 hrs	10 – 12 hrs
6 months	2h15 – 2h30	3	3 – 3.5 hrs	11 – 12 hrs
7 – 8 months	2h30 – 3h30	2 – 3	2.5 – 3.5 hrs	11 – 12 hrs
9 – 10 months	3h – 3h30	2	2.5 – 3 hrs	11 – 12 hrs
11 – 12 months	3h – 4h	2	2 – 3 hrs	11 – 12 hrs
13 – 15 months	3h30 – 4h (2 naps)	2 → 1	2 – 3 hrs	11 – 12 hrs
16 – 18 months	5h – 6h	1	2 – 2.5 hrs	11 – 12 hrs
19 – 24 months	5h – 6h	1	1.5 – 2.5 hrs	11 – 12 hrs

Typical ranges. Every baby is different.

The big nap transitions

4 → 3 naps: usually around 4–5 months, as wake windows stretch past 1h45.
3 → 2 naps: usually around 7–8 months. Expect some days with two naps and some with three while it settles.
2 → 1 nap: usually between 14 and 18 months. It's one of the trickiest — see our guide to the 2-to-1 nap transition.

Signs the schedule isn't working

Naps of 30–45 minutes, over and over: often a wake window that's too short or too long.
Waking at 5am: often a bedtime that's too late or a long final wake window — see why babies wake at 5am.
Waking every 2 hours at night: the daytime schedule is the first place to look — see baby waking every 2 hours.
Bedtime battles: often an under-tired toddler — see toddler bedtime resistance.
Everything fell apart around 4 months: that's usually the 4 month sleep regression.

Want the full day-by-day schedules?

The table above shows the ranges. My ebook turns them into complete daily schedules you can follow, for every stage from 3 to 24 months:

12 age-by-age guides with sample daily schedules and wake windows
Short-nap fixes for each stage, plus 3→2 and 2→1 nap transitions
A regression map (4, 8, 12, 18 and 24 months) and early-waking troubleshooting
A printable weekly sleep tracker

$17 Get the ebook 21-page PDF · instant download

When a schedule isn't enough

A good schedule solves a lot — but not everything. If your baby's sleep is still hard after getting the timing right, the cause is usually how they fall asleep, not when. That's where a personalized, gentle sleep plan helps.

Want a schedule built for your baby?

A free 15-minute discovery call is the easiest way to start.

Book a free discovery call