Baby Sleep Schedule by Week: Newborn to 12 Months (Complete Guide)

No period of parenting involves more rapid change than the first 12 months.

In a single year, your baby goes from sleeping 16–18 hours in chaotic, unpredictable fragments to sleeping a consolidated 11–12 hours at night with 1–2 predictable daytime naps. The number of naps drops from 4–5 to 2. Wake windows expand from 45–60 minutes to 3–4 hours. The circadian system that doesn't exist at birth is fully calibrated by 6 months.

It's an extraordinary developmental trajectory — and the reason so many parents feel like they can't keep up is that the schedule that worked last month genuinely no longer applies this month.

This guide breaks down sleep by stage from birth to 12 months, so you can see where you are, where you're going, and what to expect at every step.

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How to Use This Guide

Don't follow this rigidly. These are frameworks, not prescriptions. Babies don't read sleep books. A baby who is "2 weeks behind schedule" on transitioning to 4 naps is not a problem baby — they're a baby.

The purpose of a weekly breakdown is to give you a target zone and warning signs, not an exact timeline. Use the age ranges as ±2 weeks, and watch your baby's actual cues — wake window tolerance, nap length, bedtime tiredness — more than the calendar.

Watch for the signals, not the dates. The best time to drop a nap is when the existing schedule is clearly not working (taking forever to fall asleep at a nap, short naps, bedtime fighting). The best time to extend wake windows is when your baby is clearly not tired at the end of the current window.

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Key Sleep Terms

Wake window: The amount of time a baby can comfortably stay awake between sleep periods before becoming overtired. Too short = undertired, won't sleep well. Too long = overtired, cortisol spike, harder to settle.

Sleep cycle: A complete cycle of sleep stages. In newborns, cycles are approximately 45 minutes. In adults, they're 90 minutes. Babies often stir or partially wake between cycles — this is normal. The ability to independently bridge cycles (return to sleep without parental help) is what "sleeping through the night" actually means.

Drowsy but awake: The optimal state for putting a baby down — relaxed and sleepy, but not yet fully asleep. Putting a baby down fully asleep creates a "gap" between how they fell asleep (in your arms) and where they wake up (alone in the crib), which drives sleep association dependency.

Sleep consolidation: The process by which scattered, fragmented sleep periods merge into longer, more predictable blocks. This happens gradually and non-linearly throughout the first year.

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Newborn Stage — Weeks 1–4

Total sleep needed: 14–18 hours per 24 hours

Wake windows: 45–60 minutes (sometimes shorter in the first 2 weeks)

Number of naps: 4–6 per day (no consistent schedule yet)

Night sleep: Wakes every 2–3 hours for feeds; no consolidation expected

Sample schedule: Newborn sleep is demand-based, not clock-based. A rough rhythm might look like: feed → awake time (15–30 min) → sleep (1–2 hours) → repeat, around the clock. There is no "schedule" at this stage — only the cycle.

What to expect: Day/night confusion is normal in weeks 1–2. Newborns have not yet developed a circadian system — they don't know that night is for long sleep. They sleep in cycles regardless of time of day. This is developmental, not behavioral, and it resolves on its own by 6–10 weeks.

Key tip: Don't try to schedule a newborn — follow their cues. The most useful thing you can do in weeks 1–4 is to expose your baby to natural light during the day (which begins calibrating the circadian clock) and keep nighttime interactions dim and unstimulating (which reinforces the night signal).

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Month 2 — Weeks 5–8

Total sleep needed: 14–16 hours per 24 hours

Wake windows: 60–90 minutes

Number of naps: 4–5 per day

Night sleep: One longer stretch beginning to emerge (3–5 hours) followed by shorter segments

Sample schedule:

• 7:00am — Wake, feed
• 8:30am — Nap 1 (45–90 min)
• 10:30am — Wake, feed
• 12:00pm — Nap 2 (45–90 min)
• 2:00pm — Wake, feed
• 3:30pm — Nap 3 (30–60 min)
• 5:00pm — Wake, feed
• 6:00pm — Nap 4 (30–45 min, "cat nap")
• 7:00pm — Bedtime feed and sleep
• Night feeds: 1–3 times

What to expect: Weeks 5–8 are when many parents notice the first signs of rhythm. The first long overnight stretch (3–5 hours) often appears around 6–8 weeks. Social smiling begins, which means baby is more awake and engaged — wake windows are expanding. Day/night confusion resolves for most babies by week 6–8.

Key tip: Begin establishing a simple bedtime routine — even just feed, change, swaddle, song. Consistency here now pays off enormously at 3–4 months when you can build on it.

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Month 3 — Weeks 9–12

Total sleep needed: 14–15 hours per 24 hours

Wake windows: 75–90 minutes

Number of naps: 4–5, beginning to consolidate toward 4

Night sleep: 4–6 hour first stretch becoming more common; 1–2 night feeds typical

Sample schedule:

• 7:00am — Wake, feed
• 8:30am — Nap 1 (1–1.5 hours)
• 11:00am — Wake, feed
• 12:30pm — Nap 2 (1–1.5 hours)
• 2:30pm — Wake, feed
• 4:00pm — Nap 3 (45–60 min)
• 6:00pm — Wake, feed
• 7:30pm — Bedtime routine and sleep
• Night feeds: 1–2 times

What to expect: The circadian rhythm is emerging and strengthening. Melatonin production (the sleep hormone) begins around 10–12 weeks, which is why babies this age start to show more predictable sleep/wake patterns. Naps are still variable in length — 30-minute "short cycles" are extremely common. Many 3-month-olds have one long nap and several shorter ones.

Key tip: If your baby has a predictable nap at a specific time, protect it — consistency reinforces the circadian signal. Avoid the temptation to skip naps to "tire baby out." Overtiredness produces worse night sleep.

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Month 4 — Weeks 13–16

Total sleep needed: 14–15 hours per 24 hours

Wake windows: 1.5–2 hours

Number of naps: 3–4

Night sleep: Consolidation may temporarily worsen due to the 4-month sleep regression

Sample schedule:

• 7:00am — Wake, feed
• 9:00am — Nap 1 (1–1.5 hours)
• 11:30am — Wake, feed
• 1:30pm — Nap 2 (1–1.5 hours)
• 3:30pm — Wake, feed
• 5:00pm — Nap 3 (30–45 min)
• 6:45pm — Bedtime routine
• 7:30pm — Sleep
• Night feeds: 1–2 times (may temporarily increase during regression)

What to expect: The 4-month sleep regression is the most significant and most permanent of all infant sleep regressions. Unlike later regressions that are temporary disruptions, the 4-month regression represents a permanent change in sleep architecture — the baby's sleep cycles mature to resemble adult patterns, with more light sleep and more partial arousals between cycles.

This is why babies who were sleeping well in months 2–3 suddenly seem to "forget" how to sleep at month 4. They haven't forgotten — the rules changed. The increased partial arousals between sleep cycles mean that sleep associations (needing to be rocked, fed, or held to sleep) now cause much more frequent waking.

Key tip: This is the best time to begin working on independent sleep skills. The regression is permanent — it won't "pass" back to the old pattern. Learning to fall asleep independently is what resolves it.

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Months 5–6 — Weeks 17–26

Total sleep needed: 13–15 hours per 24 hours

Wake windows: 2–2.5 hours (by 6 months)

Number of naps: 3 naps, moving toward 2

Night sleep: 10–12 hours with independent sleep skills; 1 night feed may remain for some breastfed babies

Sample schedule (5 months):

• 7:00am — Wake, feed
• 9:00am — Nap 1 (1–1.5 hours)
• 12:00pm — Feed
• 12:30pm — Nap 2 (1–1.5 hours)
• 3:00pm — Feed
• 4:30pm — Nap 3 (30–45 min)
• 6:00pm — Feed
• 7:00pm — Bedtime routine
• 7:30pm — Sleep

What to expect: Months 5–6 are a consolidation period. The 3-to-2 nap transition begins to emerge for many babies, typically between 6–8 months. Signs it's time: the baby is consistently fighting the third nap or only sleeping 20 minutes on it; nap 1 and 2 are good quality and long enough; bedtime is becoming very late to accommodate the third nap.

Solids introduction typically begins at 6 months — this doesn't dramatically affect sleep, but adequate caloric intake overall supports overnight consolidation.

Key tip: The 6-month mark is one of the best developmental windows for sleep training, if independent sleep isn't established. Sleep pressure is strong, circadian rhythms are mature, and the baby is developmentally ready. Most families who sleep train at 6 months see results in 5–10 days.

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Months 7–9 — Weeks 27–39

Total sleep needed: 12–15 hours per 24 hours

Wake windows: 2.5–3.5 hours

Number of naps: 2 naps (most babies transition from 3 to 2 in this window)

Night sleep: 10–12 hours; night feeds typically eliminated by 9 months for most babies

Sample schedule:

• 7:00am — Wake, feed
• 9:30am — Nap 1 (1–1.5 hours)
• 11:00am — Wake, feed
• 1:30pm — Nap 2 (1–1.5 hours)
• 3:00pm — Wake, feed
• 7:00pm — Bedtime routine and sleep

What to expect: Separation anxiety begins in earnest around 8–9 months, coinciding with a developmental leap in object permanence. Your baby now fully understands that when you leave, you exist somewhere else — and they don't like it. This produces the 8–9 month sleep regression: sudden increased bedtime protest, new night wakings, and difficulty with nap transfers.

This regression is temporary (typically 2–6 weeks) but can feel dramatic because the anxiety is genuine. Consistent routines and predictable responses are the best tools.

Key tip: Don't introduce new sleep associations during the separation anxiety regression. The impulse to rock, feed, or co-sleep more during this period is understandable — but it creates habits that will outlast the regression by months.

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Months 10–12 — Weeks 40–52

Total sleep needed: 12–14 hours per 24 hours

Wake windows: 3–4 hours

Number of naps: 2 naps; 2-to-1 nap transition typically occurs between 13–18 months (later than many parents expect)

Night sleep: 10–12 hours consolidated; most babies have no night feeds by 12 months

Sample schedule:

• 7:00am — Wake, feed
• 10:00am — Nap 1 (1–1.5 hours)
• 11:30am — Wake, feed
• 2:30pm — Nap 2 (1–1.5 hours)
• 4:00pm — Wake, feed
• 7:00pm — Bedtime routine and sleep

What to expect: The 12-month regression coincides with the first birthday — major developmental leaps, first steps, new language, and intense curiosity about everything. Sleep disruption during this period is common and typically short-lived (2–4 weeks).

Signs your baby is approaching the 2-to-1 nap transition (usually NOT yet at 12 months): one or both naps are being actively fought; the baby can stay awake happily for 4+ hours; total daytime sleep is dropping below 2 hours; bedtime is being delayed to accommodate two naps. Most babies are not ready for 1 nap until 13–18 months — transitioning too early produces significant overtiredness.

Key tip: Resist the urge to drop to one nap before the baby is truly ready. The 2-to-1 transition is one of the most commonly mistimed in the first year — parents interpret a nap strike (temporary regression) as readiness for the transition and make it permanent too soon.

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Quick Reference Table

Age	Total Sleep	Naps	Wake Windows	Night Sleep	Key Challenge
Weeks 1–4	14–18 hrs	4–6 (no schedule)	45–60 min	Every 2–3 hrs	Day/night confusion
Weeks 5–8	14–16 hrs	4–5	60–90 min	First long stretch emerging	Inconsistency still normal
Weeks 9–12	14–15 hrs	4–5	75–90 min	4–6 hr first stretch	30-min nap cycles
Weeks 13–16	14–15 hrs	3–4	1.5–2 hrs	Regression may worsen sleep	4-month regression
Weeks 17–26	13–15 hrs	3 → 2	2–2.5 hrs	10–12 hrs (with skills)	3-to-2 nap transition beginning
Weeks 27–39	12–15 hrs	2	2.5–3.5 hrs	10–12 hrs	Separation anxiety regression
Weeks 40–52	12–14 hrs	2	3–4 hrs	10–12 hrs	12-month regression, approaching 2→1 nap

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Frequently Asked Questions

Q: My baby doesn't match this schedule — is something wrong? Almost certainly not. These schedules describe typical ranges, not requirements. Babies vary by 1–4 weeks in developmental timing — a baby who is "behind" on wake window tolerance by 3 weeks is a normal baby, not a delayed one. Watch your specific baby's cues more than the calendar. A baby who is going down easily, sleeping age-appropriate total hours, and waking happy is on their own right schedule.

Q: Should I wake my baby to keep the schedule? Sometimes, yes — strategically. Allowing a very long morning nap can push the afternoon nap too late, which pushes bedtime too late, which produces overtiredness and night waking. A general guideline: if the first nap extends past its usual window and is threatening to compress the rest of the day, it's reasonable to wake after 1.5–2 hours. But "wake a sleeping baby to stick to a schedule" is not a universal rule — use judgment based on how the rest of the day is playing out.

Q: When do babies start sleeping through the night? "Sleeping through the night" is loosely defined — but a common benchmark is 6+ consecutive hours. By 3–4 months, about 50% of babies achieve this. By 6 months, about 60–70% do with some support. By 9–12 months, 80–90% of babies can sleep 10–12 hours with consistent independent sleep skills. The wide variance is explained mostly by sleep associations — babies with independent sleep skills sleep through; babies relying on parental soothing to return between cycles don't.

Q: Can I follow a schedule from day 1? Not a clock-based schedule, no — newborns genuinely can't follow one, and trying to impose one leads to feeding misses and frustration. What you can do from day 1 is follow a routine-based approach: same sequence of activities (feed, awake, sleep) rather than same times on a clock. Clock-based scheduling becomes viable around 3–4 months when the circadian system is functional.

Q: How do I know if we're on the right track? The clearest signs: your baby is generally happy and alert during wake windows (not overtired or cranky), falls asleep within 20 minutes at nap and bedtime (not fighting sleep for 45+ minutes), and is gaining weight normally. Total sleep that's within 1–2 hours of the guideline range is fine. Occasional disruptions — regressions, teething, travel — are expected and don't mean the overall approach is wrong.

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Red Flags: When to Contact Your Pediatrician

Symptom	Possible Cause	Action
Significant under-sleeping (consistently 2–3 hours below range for age)	Possible underlying issue	Discuss with pediatrician
Excessive sleep (consistently 2–3 hours above range for age)	Possible illness or feeding issue	Discuss with pediatrician
Snoring, labored breathing, or gasping during sleep at any age	Sleep-disordered breathing	Evaluate with pediatrician
Sudden dramatic regression after months of stable sleep	Illness, ear infection, or pain	Rule out medical cause first
No improvement in sleep consolidation past 6 months with consistent routines	May benefit from structured sleep approach or evaluation	Discuss with pediatrician
Poor weight gain alongside frequent night waking	Possible feeding or metabolic issue	Discuss with pediatrician and lactation consultant