Age-by-age sleep guidelines, plus a simple bedtime calculator based on your baby's last wake-up.
Newborn (0–3mo)
14–17 hrs/day, in short stretches around the clock
4–11 months
12–16 hrs/day (incl. naps), 2–3 naps
1–2 years
11–14 hrs/day (incl. naps), 1–2 naps
3–5 years
10–13 hrs/day, nap often dropping by age 5
Bedtime / next-nap calculator
Suggested next sleep time
wake window used
earliest
latest
Wake windows and sleep totals are general starting points, summarized from commonly cited pediatric sleep guidelines — every baby's needs and rhythms differ, and premature babies often need adjustments based on corrected age. Watch your baby's own sleepy cues (yawning, rubbing eyes, fussiness) alongside any calculator estimate.