Age-based wake windows, nap schedule, and bedtime range from newborn to 24 months.
We'll calculate the next nap or bedtime based on the age-appropriate wake window.
Wake windows by age
| Age | Wake window | Naps | Total sleep |
|---|---|---|---|
| 0–4 weeks | 45–60 min | 4–5 | 14–17 hr |
| 4–12 weeks | 60–90 min | 3–4 | 14–16 hr |
| 3–6 months | 1.5–2.5 hr | 3 | 12–15 hr |
| 6–9 months | 2–3 hr | 2 | 12–14 hr |
| 9–12 months | 2.5–3.5 hr | 2 | 12–14 hr |
| 12–18 months | 3–4 hr | 1–2 | 11–14 hr |
| 18–24 months | 4–5 hr | 1 | 11–14 hr |
Reference: AAP HealthyChildren.org
⚠️ Every baby is different. Follow sleepy cues. Not medical advice. Consult your pediatrician.
More baby resources
Baby Sleep FAQ
- When do babies sleep through the night?
- Many babies start sleeping 5–6 hour stretches between 4 and 6 months. True 10–12 hour nights are typical between 9–12 months, but range is wide.
- What are wake windows by age?
- Newborn 45–60 min · 3 mo 75–90 min · 6 mo 2–3 hr · 12 mo 3–4 hr · 2 yr 5–6 hr.
- How do I establish a bedtime routine?
- Keep it short (20–30 min), boring, and identical every night: bath, feed, dim lights, lullaby, into the cot drowsy but awake.
- Why does my baby fight sleep?
- Usually overtiredness or undertiredness — both lead to the same crying. Track wake windows for two days to find the right window.
Medical disclaimer. Everything on this page is general educational information and is not a substitute for professional medical advice. Sleep needs vary from person to person. If you have ongoing sleep problems, talk to a licensed healthcare professional.