Baby Sleep & Wake Window Guide
Get typical total sleep, nap count and awake time between sleeps for a baby's age, with a suggested bedtime from the wake-up time, free online.
About this calculator
Guidelines (AASM/Sleep Foundation): 0–3 months 14–17 h of sleep a day, 4–11 months 12–15 h, 1–2 years 11–14 h, 3–5 years 10–13 h. Wake windows lengthen with age, from 45–90 minutes in newborns to 5–6 hours around 2 years. Every baby is different.