A lot of newborn-sleep articles open with a tidy schedule: 6:30 AM wake, nap at 8:15, midday nap at 11:45, and so on. That's not how the first three months actually work. Newborn sleep evolves in a recognizable shape, but it's a rhythm, not a schedule, and the rhythm shifts noticeably from one week to the next.
This is what to expect, week by week. Numbers are averages; your specific baby will vary.
The big picture (0–12 weeks)
| Age | Total sleep / 24h | Longest stretch at night | Naps per day |
|---|---|---|---|
| Week 1 | 16–18 hours | 2–3 hours | 6–8 short bouts |
| Weeks 2–3 | 15–17 hours | 3–4 hours | 5–7 |
| Weeks 4–6 | 14–16 hours | 4–5 hours | 4–6 |
| Weeks 7–9 | 14–16 hours | 5–6 hours | 4–5 |
| Weeks 10–12 | 13–15 hours | 5–8 hours | 4 |
Two things to notice. The total amount of sleep doesn't change as dramatically as you'd hope. The shape of that sleep does. The longest stretch grows, the number of naps shrinks, and night and day start to differentiate.
Week 1: pure newborn
Your baby is sleeping a lot, roughly 16 to 18 hours in 24, but not for very long at any one time. Stretches of 1.5 to 3 hours are typical. Day and night are not yet differentiated; many babies are sleepiest in the daytime and most alert from 11 PM to 4 AM. This is biological, not a problem you caused.
What's normal:
- Sleeping through anything (vacuum, dishwasher, doorbell)
- Twitching, grunting, occasional fussing in sleep
- Cycling in and out of light sleep frequently. They look awake, then they don't.
- Falling asleep mid-feed
What helps you:
- Don't try to "set a schedule." There's no schedule to set.
- Keep night feeds dim and boring; keep daytime feeds bright and chatty. This is the start of teaching day vs. night.
- Sleep when you can, even if it isn't when the baby sleeps. Trade a night with your partner if you have one.
Weeks 2–3: the awake-baby reveal
Around the end of week one, your baby starts having longer alert windows during the day. They're often 30–60 minutes long, including a feed. Total sleep drops slightly to 15–17 hours. The longest single stretch at night sometimes edges to 3 or 4 hours.
This is also when many parents notice the witching hour for the first time: a fussy, clingy, want-to-be-held stretch in the late afternoon and evening, usually paired with cluster feeding. It's exhausting and it's normal.
The "schedule" at this stage is still random. Don't try to enforce one. Pay attention to wake windows. Most newborns can only handle 45 to 90 minutes awake before they need to sleep again.
Weeks 4–6: glimpses of pattern
Now you start to see something resembling a pattern. Total sleep is around 14–16 hours. The longest night stretch begins to consolidate to 4–5 hours, often happening in the early part of the night (e.g., 9 PM to 1 AM).
Around 4–6 weeks, many babies are also more interactive when awake. Actual smiles arrive, eye contact gets stronger, and naps become a little easier to read. Wake windows stretch to 60–90 minutes.
If your baby has a "fussy peak" in the evening, this is when it tends to be at its worst. And then, almost on cue, it starts to wind down. It typically peaks around 6 weeks and noticeably eases after 8.
Weeks 7–9: things calm down (a little)
This is when many parents feel the first wave of relief. Naps are still varied (anywhere from 30 minutes to 2.5 hours), but the night begins to feel manageable. Many babies now have:
- A long first stretch at night of 5–6 hours
- A second stretch of 3–4 hours
- One quick night feed in between
Total sleep is settling around 14–16 hours. Wake windows are 75 minutes to 2 hours, depending on the baby and the time of day.
This is also when day-night confusion is, for most babies, fully resolved. Daytime alertness is real alertness. Nighttime, while still interrupted, feels like nighttime.
Weeks 10–12: the first version of "a schedule"
By the end of the third month most babies have something that genuinely looks like a daily rhythm. There are usually four naps:
- Morning nap (often around 1.5–2 hours after morning wake-up)
- Midday nap (the longest of the day, 1–2 hours)
- Afternoon nap (shorter, 30–60 minutes)
- A short evening "catnap" before bedtime
Total sleep settles to 13–15 hours. The longest night stretch can be 5 to 8 hours for many babies, with one or two night feeds. Wake windows have stretched to 1.5 to 2 hours.
This is also typically when bedtime starts to anchor. Many babies naturally drift toward an earlier bedtime (somewhere in the 7–9 PM range) by the end of month three.
Wake windows, the most useful concept
If there's one tool that's genuinely useful for newborn sleep, it's wake windows. A wake window is the time between the end of one nap and the start of the next, including feeding.
A rough guide:
- Weeks 0–4: 30–90 minutes
- Weeks 5–8: 60–90 minutes
- Weeks 9–12: 75 minutes – 2 hours
Why it matters: an overtired newborn is much harder to put down than a well-timed-tired one. If you watch the clock more than the baby, you'll often catch them just before they hit the overtired wall, and naps go in much more easily.
Watch for early sleepy cues: glazed eyes, slowing movement, looking away, a yawn or two, fussiness. Once a newborn starts crying from overtiredness, the window has already closed.
If you log naps in Tottli for a few days, your baby's actual wake-window pattern usually settles into a 15-minute band, which is more useful than the table averages once you can see it on the timeline.
What's not realistic in the first 12 weeks
To save you the disappointment of comparing your baby to internet schedules, a few things you should not expect before three months:
- A predictable nap schedule with consistent times each day
- Sleeping through the night (sleep researchers define it as a 5–6 hour stretch, which is more achievable; the colloquial "12 hours" is not coming yet)
- Self-settling without help
- Long naps (90+ minutes) every time
- Putting the baby down "drowsy but awake" and having it work consistently
Some babies do some of these things early and that's fine. None of them are realistic to expect yet.
What helps sleep go better
A short list of things that genuinely move the needle in the first 12 weeks:
- Honor wake windows. Aim to start putting the baby down for sleep before they hit the overtired wall.
- Differentiate day and night. Bright and active by day, dim and boring at night.
- Use a swaddle (for now). Most newborns sleep better swaddled. Stop swaddling once your baby shows any sign of rolling, usually around 8–12 weeks.
- White noise. A simple, consistent shushing sound helps many newborns settle and stay settled, both day and night.
- A short, predictable wind-down before sleep. Even at this age, a 5-minute "we're going to sleep now" sequence (dim the lights, change diaper, swaddle, sing one song) is enough to start cuing the body.
- Safe sleep, every time. Back to sleep, on a flat firm surface, in a bassinet or crib, no bumpers, blankets, pillows, or stuffed animals. Same room as you for the first six months.
When to talk to your pediatrician
Most of newborn sleep variability is just variability. A few patterns are worth checking:
- Excessive sleepiness (hard to wake for feeds, sleeping through 5+ hour stretches in the first two weeks before regaining birth weight)
- Very rapid or labored breathing during sleep
- Color changes during sleep (truly blue lips or face, not just the slightly mottled normal)
- Persistent inability to settle, with no comfort, hour after hour over many days
Trust your gut. If something feels off, calling is the right move.
What this looks like at twelve weeks
By twelve weeks, most parents have a baby with a recognizable shape to the day. By sixteen weeks, that shape becomes a routine. You don't get there by forcing a schedule. You get there by going through the weeks and watching one emerge.
The "right" amount of sleep is the amount your baby actually sleeps. Wake windows beat clock-watching. This phase is finite, even on the days it doesn't feel like it.