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Baby Sleep Schedule Calculator — Norms and Nap Counts

The baby sleep schedule calculator helps you check how much sleep your child needs at their current age and whether the actual sleep time is sufficient. Enter the baby's age in months and the total daily sleep hours — the calculator shows the recommended norms, typical number of naps and any sleep deficit.

Reviewed byRedakcja Liczbnik
Calculator
h
Baby sleep assessmentSleep assessmentok
Recommended minimum
12 h
Recommended maximum
15 h
Typical number of naps
3-4 drzemki
Sleep deficit
0 h

How the calculator assesses baby sleep

Sleep norms by age: 0–3 m: 14–17 h, 3–5 naps 4–6 m: 12–15 h, 3–4 naps 7–12 m: 12–15 h, 2–3 naps 13–18 m: 11–14 h, 1–2 naps 19–24 m: 11–14 h, 1 nap Deficit = max(0, min_norm − total_sleep) Assessment: "too little" below minimum, "ok" within range, "too much" above maximum

Example: 6-month-old baby, 12 hours of sleep

A 6-month-old should sleep 12–15 hours per day (3–4 naps). With 12 hours of sleep the assessment is "ok" — this is at the lower end of the normal range. At 10 hours a deficit of 2 hours appears.

Frequently asked questions

How many hours should a baby sleep?

Newborns (0–3 months) need 14–17 hours of sleep per day. From 4 to 12 months the norm is 12–15 hours. Toddlers aged 13–24 months should sleep 11–14 hours. Remember these are averages and every child may have slightly different needs.

How many naps should a baby have during the day?

Newborns nap 3–5 times a day. Between 4 and 6 months naps reduce to 3–4. Babies aged 7–12 months typically have 2–3 naps. Toddlers aged 13–18 months transition to 1–2 naps, and those aged 19–24 months usually have one afternoon nap.

Can a baby sleep too much?

Yes, excessive sleep (above recommended norms) can signal health issues such as infection or colic. Newborns sleeping more than 17 hours or older infants sleeping 15+ hours should be reviewed by a paediatrician, especially if feeding difficulties or lack of interest in surroundings are also present.

What should I do if my baby is not sleeping enough?

First check the environment: room temperature (18–20°C), darkness and noise levels. Establish a consistent daily routine — bath, quiet time and feeds at regular times. Avoid overtiredness by keeping wake windows age-appropriate. If sleep deprivation persists, consult your paediatrician.

What does a typical baby sleep pattern look like?

A newborn sleeps and wakes every 2–4 hours around the clock. Around 3–4 months babies start sleeping longer stretches at night. Between 6 and 12 months most babies can sleep 6–8 hours at night without a feed. A regular bedtime routine helps establish a stable rhythm.

Are naps important for a baby's development?

Yes. Naps are crucial for memory consolidation, growth and recovery. Cutting naps short can lead to overtiredness and paradoxical difficulties falling asleep at night. Many sleep experts recommend the principle of "sleep begets sleep" — a well-rested baby falls asleep more easily.

Indicative result

Educational information only. Every child is different — always consult your paediatrician. Sleep norms are averages; individual needs may vary. Do not self-diagnose or self-treat sleep disorders.
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