Baby Sleep Schedule by Age — The Complete Month by Month Guide
One of the most common sources of parental anxiety isn’t whether their baby loves them or is hitting developmental milestones — it’s whether their baby is sleeping enough, at the right times, in the right pattern. And it’s a legitimate concern: sleep is the single most important factor in infant brain development, immune function, and emotional regulation. Getting it right matters.
This baby sleep schedule by age guide gives you the complete picture — how much sleep your baby needs at every age, what realistic schedules look like month by month, and how to use wake windows to keep your baby in the optimal sleep zone throughout the day.
How Baby Sleep Works — The Foundation
Before diving into schedules, two concepts make everything else make sense.
Sleep Pressure and Circadian Rhythm
Two systems drive sleep. The first is sleep pressure — a neurochemical called adenosine that builds up in the brain the longer you’re awake and creates the physical sensation of tiredness. When sleep pressure gets high enough, sleep happens. The second is the circadian rhythm — the internal biological clock that tells the body when it’s day and when it’s night, governed primarily by light exposure.
Newborns have almost no circadian rhythm — their bodies haven’t learned the difference between day and night yet. This develops gradually over the first three to four months, which is why newborn sleep feels so random. By three to four months, most babies begin to show a more predictable pattern as the circadian rhythm matures. Schedules become meaningful at this point — before then, you’re largely following your baby’s cues rather than imposing structure.
Wake Windows
A wake window is the amount of time a baby can comfortably stay awake between sleeps before sleep pressure becomes excessive and overtiredness sets in. Overtiredness is the enemy of good sleep — when cortisol spikes from exhaustion, the brain’s arousal system activates, making falling asleep and staying asleep paradoxically harder.
Watching wake windows carefully — starting the wind-down before your baby shows strong tired signs — is the single most impactful scheduling tool available. The right wake window varies by age and by individual baby, but the ranges below give you an accurate starting framework.
How Much Sleep Does a Baby Need? — By Age
| Age | Total Daily Sleep | Night Sleep | Daytime Naps | Number of Naps |
|---|---|---|---|---|
| 0–4 weeks | 16–18 hours | 8–9 hours (fragmented) | 8–9 hours | 4–5 |
| 1–2 months | 15–17 hours | 8–9 hours | 7–8 hours | 4–5 |
| 3–4 months | 14–16 hours | 9–10 hours | 4–5 hours | 3–4 |
| 5–6 months | 13–15 hours | 10–11 hours | 3–4 hours | 3 |
| 7–9 months | 12–14 hours | 10–12 hours | 2–3 hours | 2 |
| 10–12 months | 12–14 hours | 11–12 hours | 2–3 hours | 2 |
These are averages and ranges — not precise targets. A baby consistently sleeping slightly outside these ranges while thriving, growing well, and waking happy is not a problem. Use these numbers as a guide, not a standard your baby must hit exactly.
Month by Month Baby Sleep Guide
Newborn — 0 to 4 Weeks
What to expect: Newborn sleep is genuinely unpredictable and largely unschedulable. Newborns sleep in 2–4 hour cycles around the clock, waking primarily for feeding. Day and night have no meaning to their nervous system yet. This is normal, temporary, and not something you can or should try to force into a rigid structure.
Wake window: 45–60 minutes maximum. Newborns become overtired extremely quickly — the window from awake to needing to sleep again is very short.
What helps: Focus on the environment rather than a schedule. Dark room, consistent temperature (16–20°C), skin-to-skin contact, feeding on demand. White noise is particularly effective at this age — it closely mimics the acoustic environment of the womb. See our guide to white noise for babies for how to use it safely and effectively.
Night feeds: Expected and necessary. Newborns have small stomachs and genuinely need feeding every 2–4 hours. This is not a sleep problem — it’s normal biology.
What not to worry about: Day/night confusion, irregular nap lengths, only sleeping on you. All completely normal for this age.
1–2 Months
What to expect: Slightly more predictability begins to emerge, though schedules remain loose. Some babies begin to show the first hints of longer overnight stretches — a 3–4 hour stretch at night is a genuine win at this age and worth celebrating.
Wake window: 60–90 minutes.
Sample loose pattern:
- Wake, feed, short awake time, nap — repeat throughout day
- Aim for a slightly longer stretch at night by keeping daytime bright and stimulating and evenings dark and calm
- Begin a simple pre-sleep routine for the longest sleep of the day — even just dimming lights and feeding in a calm environment starts to build the association
Night feeds: Still necessary — expect 2–3 feeds per night.
3–4 Months
What to expect: This is when things get interesting — in both good and challenging ways. The circadian rhythm is developing meaningfully, making scheduling more viable. But this is also when the four month sleep regression typically hits — a permanent neurological change in sleep architecture that disrupts sleep for many babies.
Wake window: 90 minutes–2 hours.
Sample schedule (3–4 months):
- 7:00am — Wake and feed
- 8:30–9:00am — Nap 1 (45–60 mins)
- 10:00am — Feed
- 11:00–11:30am — Nap 2 (45–60 mins)
- 12:30pm — Feed
- 2:00–2:30pm — Nap 3 (45–60 mins)
- 3:30–4:00pm — Feed
- 4:30–5:00pm — Short catnap (30 mins max)
- 6:30–7:00pm — Bedtime routine begins
- 7:00–7:30pm — Bedtime
Night feeds: 1–2 feeds is typical and expected. Some larger babies begin sleeping longer stretches.
Key focus: Establishing a consistent bedtime routine. The sleep environment (blackout blinds, white noise, appropriate temperature) becomes increasingly important as sleep architecture matures.
5–6 Months
What to expect: Three naps consolidating toward two, longer overnight stretches becoming more realistic, bedtime settling becoming easier with a consistent routine in place. Many babies are developmentally ready to begin gentle sleep coaching at this age if night waking remains frequent.
Wake window: 2–2.5 hours.
Sample schedule (5–6 months):
- 7:00am — Wake and feed
- 9:00–9:15am — Nap 1 (60–90 mins)
- 10:45–11:00am — Wake, feed
- 1:00–1:30pm — Nap 2 (60–90 mins)
- 3:00pm — Wake, feed
- 5:00–5:15pm — Nap 3 if needed (30 mins max — this is the “bridger” nap)
- 6:30pm — Bedtime routine begins
- 7:00–7:30pm — Bedtime
Night feeds: Many babies at this age are physiologically capable of sleeping through without feeds, though many still wake from habit. One genuine hunger feed is common and normal.
7–9 Months
What to expect: Transition to a firm two-nap schedule. Significant developmental leaps — rolling, sitting, beginning to crawl — often cause temporary sleep disruption. Separation anxiety begins to emerge, making bedtime settling harder for some babies.
Wake window: 2.5–3 hours.
Sample schedule (7–9 months):
- 7:00am — Wake and feed
- 9:30–9:45am — Nap 1 (60–90 mins)
- 11:15–11:30am — Wake, feed, lunch
- 2:00–2:30pm — Nap 2 (60–90 mins)
- 3:30–4:00pm — Wake, feed
- 6:30pm — Bedtime routine begins
- 7:00pm — Bedtime
Night feeds: Most babies at this age who are eating well during the day don’t require night feeds nutritionally, though many still wake from habit or comfort.
10–12 Months
What to expect: Two solid naps, increasingly predictable overnight sleep for babies with established sleep skills. Around 12 months, some babies begin showing signs of readiness to transition to one nap — though many don’t make this transition until 15–18 months. Don’t rush it.
Wake window: 3–4 hours.
Sample schedule (10–12 months):
- 7:00am — Wake and milk feed, then breakfast
- 10:00–10:15am — Nap 1 (60–90 mins)
- 11:30am — Lunch
- 2:00–2:30pm — Nap 2 (60–90 mins)
- 4:00pm — Afternoon snack
- 6:30pm — Bedtime routine begins
- 7:00pm — Bedtime
Night feeds: Not nutritionally necessary at this age for a baby eating well during the day. Any remaining night feeds are habit or comfort.
The 12 Month Sleep Regression
A brief note: around 12 months, many babies who have been sleeping well suddenly begin waking again. This coincides with the developmental explosion of learning to walk and significant cognitive leaps. It typically resolves within two to four weeks if you hold firm with your established routine and don’t introduce new sleep associations.
Signs Your Baby’s Schedule Needs Adjusting
- Taking more than 20–30 minutes to fall asleep at nap time — wake window may be too short
- Crying intensely and immediately at nap time — wake window may be too long (overtired)
- Waking after exactly one sleep cycle (30–45 mins) and not resettling — sleep association issue or developmental readiness for longer wake windows
- Early morning waking before 6am — often caused by overtiredness (too late bedtime or insufficient daytime sleep) rather than too much sleep
- Refusing the third nap but not yet managing on two — transition phase, manage with a slightly earlier bedtime
When to Seek More Structured Support
Baby sleep schedules give you the framework. But a framework without the full picture of settling techniques, sleep associations, night weaning, and how to handle regressions leaves gaps that cause most parents to struggle.
Our The Complete Baby and Toddler Sleep Blueprint (available on Amazon, Gumroad, Etsy & Payhip) takes everything in this guide further — with detailed sample schedules for every age, step-by-step settling techniques, guidance on handling every major regression, and a complete approach to gently building independent sleep skills. It’s the resource that ties every piece of the sleep puzzle together.
Final Thoughts
Baby sleep schedules are a guide, not a rulebook. Every baby is different — some sleep more, some less, some transition between stages earlier or later. What matters is that your baby is growing well, happy when awake, and settling to sleep without excessive difficulty.
Use the wake windows and sample schedules in this guide as your starting point. Adjust based on your baby’s cues. And if sleep has become a significant struggle — for your baby or for you — know that it’s a solvable problem, not a permanent state.
For the related challenges that commonly arise alongside scheduling — the four month regression, frequent night waking, and short naps — see our complete guides on the four month sleep regression and getting your baby to sleep through the night.
This article is for informational purposes only and does not constitute medical advice. Always follow safe sleep guidelines from your national health authority. If you have concerns about your baby’s health, development, or sleep, consult your GP or health visitor.