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Baby Sleep Calculator

Baby Care

Generated
September 24, 2026

Typical sleep / 24h

14hrs

≈ 10 hrs overnight + 4 hrs in naps

Your inputs

Baby's age
4 months

Breakdown

Night sleep
10 hrs
Naps
4 hrs
Age
4 months

Sleep needs by age

AgeTotal / 24hNaps
0–1 mo14–173–4 naps
1–3 mo14–164 naps
4–6 mo12–153 naps
7–11 mo12–152 naps
1–2 yr11–141 nap

Ranges are general; every baby has individual needs.

What this means

Total sleep needs fall steadily as babies grow — from around 14–17 hours as a newborn down to about 11–14 hours for toddlers. The split also changes: newborns distribute sleep evenly across day and night, while by 6–12 months most sleep consolidates into a long night stretch plus 2–3 naps. These are typical ranges, not requirements; wake windows, temperament and development all shape any individual baby.

Recommendations

  • Follow tiredness cues and wake windows rather than clock time alone — every baby varies.
  • A consistent bedtime routine helps signal that sleep is coming.
  • Expect sleep to shift around growth spurts and milestones — it's normal.

Watch out

  • Ranges are averages, not quotas — a baby on the low or high end can be perfectly healthy.
  • If sleep concerns are causing distress, talk to a pediatrician rather than self-diagnosing online.

Generated with Calcvers · https://calcvers.com/calculators/baby-sleep-calculator?ageMonths=4

Figures are estimates based on the inputs above. Check anything you rely on financially or medically with a qualified professional.