Baby Wake Windows by Age

A wake window is the stretch of awake time between sleeps. These ranges are typical for the age and the nap schedule. They usually lengthen through the day, so the stretch before the first nap is shorter than the stretch before bedtime.

Wake windows by age

Typical ranges, not a rigid timetable.

Age Range	Schedule	Before Nap 1	Before Nap 2	Before Nap 3	Before Nap 4	Before Bedtime
0-4 weeks	5+ naps	30-60m	30-60m	30-60m	30-60m	45-60m
1-2 months	4-5 naps	60-75m	60-75m	75-90m	75-90m	75-90m
3-4 months	4 naps	75-90m	90-105m	90-105m	105-120m	105-120m
5-7 months	3 naps	2h	2.5h	2.5h	n/a	2.5-3h
7-10 months	2 naps	2.5-3h	3h	n/a	n/a	3-3.5h
11-14 months	2 naps	3h	3-3.5h	n/a	n/a	3.5-4h
14-24 months	1 nap	5-6h	n/a	n/a	n/a	4-5h

0-4 weeks · 5+ napsNewborn windows are highly irregular. These are rough planning ranges. Watch sleepy cues, not the clock. Day-night confusion is common. Bedtime window is slightly longer.

1-2 months · 4-5 napsWake windows gradually lengthen. The longest window is before bedtime. Naps remain short (30-45 min each).

3-4 months · 4 napsWindows lengthen through the day. The 4th nap is a short catnap (30-45 min). Bedtime window is the longest. The 4-to-3 nap transition often begins around 4 months.

5-7 months · 3 napsFirst window is shortest (~2h). Third nap is a 30-45 min catnap. Bedtime window is usually the longest. Bedtime may need to be earlier if the last nap ends early.

7-10 months · 2 napsMorning nap + afternoon nap. Bedtime window is usually the longest. Bedtime may shift earlier if naps are short. Goal daytime sleep: 2.5-3.5 hours.

11-14 months · 2 napsWake windows extend to 3-4 hours. Bedtime window is usually the longest. The 2-to-1 nap transition is common here. If baby resists the second nap for 1-2 weeks, they may be ready to drop to 1 nap.

14-24 months · 1 napOn a 1-nap schedule, the pre-nap window is usually the longest of the day (5-6h). Single afternoon nap. Some toddlers near 24 months begin resisting the nap.

How to use a window

Start from the time your baby last woke. Add the window for the sleep that is actually next. A first nap and bedtime on the same day do not share one number.

If the window passes, the next stretch is often harder. An overtired baby has a harder time falling asleep and staying asleep.

The table is the age pattern in the baby sleep guide. Napple’s clock follows the sleeps you log, so the next window can sit inside this range and still be this baby’s. See the next sleep time from the guide, or read what a bumpy stretch looks like on the baby sleep regression.

Medical Disclaimer: This tool provides general reference information compiled from pediatric sleep guidelines (AAP, Sleep Foundation, NHS). Every baby develops differently. These are typical ranges, not prescriptive targets. Always consult your pediatrician for questions about your baby's feeding, growth, health, or sleep concerns. Follow safe sleep guidelines: place babies on their back on a firm, flat surface with no loose bedding.

Sources

Built for every baby by an architect mom and a programmer dad, with help and inspiration from their boy, who loves pandas.