Wake Windows by Age

How long can your baby stay awake? The full chart, newborn to age three — with a calculator preset to each age so you don't have to do the math.

Age	Wake window	Naps / day	Day sleep	Night sleep	Guide
Newborn (0–6 weeks)	45–60 min	5–7	5–7 hr	8–10 hr	—
1 month	60–75 min	4–6	4–6 hr	8–10 hr	1 mo
2 months	60–90 min	4–5	4–5.5 hr	9–11 hr	2 mo
3 months	75–105 min	4–5	3.5–5 hr	10–12 hr	3 mo
4 months	90–120 min	3–4	3–4.5 hr	10–12 hr	4 mo
5 months	105–150 min	3–4	2.5–4 hr	10.5–12 hr	—
6 months	120–165 min	3–3	2.5–3.5 hr	10.5–12 hr	6 mo
7 months	135–180 min	2–3	2–3 hr	11–12 hr	—
8 months	150–195 min	2–3	2–3 hr	11–12 hr	—
9 months	150–195 min	2–2	2–3 hr	11–12 hr	9 mo
10 months	165–210 min	2–2	2–2.5 hr	11–12 hr	—
12 months	180–240 min	2–2	2–2.5 hr	11–12 hr	12 mo
15 months	180–240 min	1–2	1.5–2.5 hr	11–12 hr	—
18 months	240–300 min	1–1	1.5–2.5 hr	11–12 hr	18 mo
2 years	270–330 min	1–1	1–2 hr	11–12 hr	24 mo
3 years	300–360 min	1–1	0.5–1.5 hr	10.5–12 hr	—

How to read this chart

Wake windows lengthen as babies grow and their circadian rhythm matures. A newborn can barely handle an hour; a toddler runs four to five hours on one midday nap. Two rules of thumb: the first window of the day is the shortest, and the last window before bedtime is the longest.

These ranges describe the middle of healthy variation — not a rule your baby is failing. If your baby falls asleep easily within a window, the window is right. Fussing, arching, or taking 30+ minutes to settle usually means the window was too long or too short for that stretch of the day.

For a schedule built from your baby's exact age in months and weeks, use the wake window calculator — and see where these numbers come from.