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One of the most common questions new parents ask is: "What should my baby's sleep schedule look like?" The answer changes significantly every few months in the first year and a half — because your baby's sleep needs, wake windows, and nap requirements are in constant flux as their brain and nervous system develop.
This guide provides evidence-based sleep schedules for every stage from newborn through 3 years, including sample daily schedules, wake windows by age, and a complete guide to nap transitions. Use these as guides, not rules — all babies vary by 1–2 weeks in developmental readiness, and normal ranges are wider than most sleep content suggests.
💡 Important Note
These schedules are guidelines based on typical development. Every baby is individual. Ranges of 1–2 weeks on either side of developmental transitions are completely normal. If your baby's schedule differs somewhat from what's shown here, that is almost certainly fine — consult your pediatrician if you have specific concerns.
A wake window is the amount of time a baby can comfortably stay awake between sleep periods before becoming overtired. It is the single most useful concept for building a baby sleep schedule, because it replaces the need for rigid clock-based scheduling — especially in the early months when clock schedules simply don't work.
Wake windows are driven by adenosine — the sleep-pressure chemical that builds up in the brain during wakefulness and dissipates during sleep. Young babies can only tolerate a small adenosine build-up before their nervous system becomes overloaded. As the brain matures, wake windows extend, naps consolidate, and clock-based schedules become feasible.
The key principle: put baby down at the end of the appropriate wake window, when tired cues appear. Signs you've hit the wake window sweet spot: baby shows mild tired cues (rubbing eyes, losing interest in play, yawning) right as the window ends, settles within 10–15 minutes, and takes a full nap. Signs the window is too long: overtiredness (red-rimmed eyes, sudden fussiness, arching back), difficulty settling, short naps. Signs too short: baby fights sleep because they're not tired enough yet.
| Age | Wake Window | Number of Naps | Total Sleep |
|---|---|---|---|
| 0–4 weeks | 45–60 min | 4–6 naps | 14–17 hours |
| 4–8 weeks | 60–75 min | 4–5 naps | 14–16 hours |
| 2–3 months | 75–90 min | 4–5 naps | 14–16 hours |
| 3–4 months | 1.5–2 hours | 3–4 naps | 14–16 hours |
| 4–5 months | 1.75–2.25 hours | 3 naps | 14–15 hours |
| 5–7 months | 2–2.5 hours | 2–3 naps | 13–15 hours |
| 7–9 months | 2.5–3 hours | 2 naps | 13–14 hours |
| 9–12 months | 3–3.5 hours | 2 naps | 13–14 hours |
| 12–15 months | 3–4 hours | 1–2 naps | 13–14 hours |
| 15–18 months | 4–5 hours | 1 nap | 12–14 hours |
| 18–24 months | 5–6 hours | 1 nap | 12–14 hours |
| 2–3 years | 5–7 hours | 0–1 nap | 11–14 hours |
Newborns do not have an established circadian rhythm. They cannot distinguish day from night, they have no concept of "bedtime," and their sleep is governed almost entirely by hunger and the newborn ultradian cycle (approximately 50-60 minute sleep cycles, with significant time in active/REM sleep). The goal in the newborn period is not to impose a schedule — it is to follow the baby's cues while beginning to build the foundations of a circadian rhythm through light exposure and feed-wake-sleep patterns.
| Metric | 0–4 Weeks | 4–8 Weeks | 8–12 Weeks |
|---|---|---|---|
| Nighttime sleep | 8–9 hrs (fragmented) | 8–9 hrs (fragmented) | 9–10 hrs (beginning to consolidate) |
| Naps | 5–8 naps, 20 min–2 hrs | 4–5 naps | 4 naps |
| Total sleep | 16–17 hours | 15–16 hours | 14–16 hours |
| Wake windows | 45–60 min | 60–75 min | 75–90 min |
| Suggested bedtime | Whenever sleep comes | 9–11 PM (early days) | 8–10 PM |
Between 3 and 6 months, the circadian rhythm begins to consolidate. Night sleep lengthens, a predictable bedtime begins to emerge (usually 7–8 PM), and the number of naps typically drops from 4–5 to 3. The 4-month sleep regression occurs during this window and can temporarily disrupt the emerging schedule — this is normal and resolves with consistency.
| Metric | 3–4 Months | 4–5 Months | 5–6 Months |
|---|---|---|---|
| Nighttime sleep | 10–11 hours | 10–11 hours | 10–11 hours |
| Naps | 3–4 naps | 3 naps | 3 naps |
| Total daytime sleep | 4–5 hours | 4–5 hours | 3.5–4.5 hours |
| Total sleep | 14–16 hours | 14–15 hours | 14–15 hours |
| Wake windows | 1.5–2 hours | 1.75–2.25 hours | 2–2.5 hours |
| Suggested bedtime | 7:30–8:30 PM | 7–8 PM | 7–8 PM |
The 6–9 month window typically sees the transition from 3 naps to 2 naps (usually between 6 and 8 months). Nighttime sleep continues to consolidate, and many babies are capable of sleeping 10–12 hours overnight with few or no feeds, depending on nutrition and individual development. Solid foods begin during this period, which can affect sleep either positively (more caloric density) or negatively (new foods causing digestive discomfort).
| Metric | 6–7 Months | 7–8 Months | 8–9 Months |
|---|---|---|---|
| Nighttime sleep | 10–11 hours | 10–11 hours | 10–12 hours |
| Naps | 2–3 naps | 2 naps | 2 naps |
| Total daytime sleep | 3–4 hours | 3–3.5 hours | 2.5–3.5 hours |
| Total sleep | 13–15 hours | 13–14 hours | 13–14 hours |
| Wake windows | 2–2.5 hours | 2.5–3 hours | 2.5–3 hours |
| Suggested bedtime | 7–8 PM | 7–7:30 PM | 7–7:30 PM |
The 9–12 month window is typically a period of relatively stable 2-nap sleep. Wake windows extend to 3–3.5 hours, and most babies in this range are sleeping 10–12 hours overnight. The 8–10 month period often includes a developmental regression driven by pulling to stand, crawling, and the early stages of separation anxiety — similar in character to the 4-month regression but behavioral rather than architectural in nature.
| Nighttime sleep | Number of naps | Nap length | Wake windows | Total sleep | Suggested bedtime |
|---|---|---|---|---|---|
| 10–12 hours | 2 naps | 1–1.5 hours each | 3–3.5 hours | 13–14 hours | 7–7:30 PM |
The 12–18 month period contains one of the biggest schedule transitions of the first two years: the move from 2 naps to 1 nap. Most babies are ready to make this transition between 14 and 18 months, though many begin fighting the second nap around 12 months during the 12-month sleep regression. The challenge: a 12-month-old who is fighting the second nap is probably not ready to go to one nap — they need the second nap but are protesting due to developmental pressure.
| Metric | 12–14 Months | 14–16 Months | 16–18 Months |
|---|---|---|---|
| Nighttime sleep | 10–12 hours | 10–12 hours | 10–12 hours |
| Naps | 2 naps | 1–2 naps (transition) | 1 nap |
| Daytime sleep | 2–3 hours | 1.5–2.5 hours | 1.5–2 hours |
| Total sleep | 13–14 hours | 12–14 hours | 12–13 hours |
| Wake windows | 3–3.5 hours | 3.5–5 hours | 5–5.5 hours |
| Suggested bedtime | 7–7:30 PM | 7–7:30 PM | 7–7:30 PM |
From 18 months through 3 years, most toddlers are on a single midday nap. The nap gradually shortens and may become more resistive toward the end of this period as some toddlers begin showing readiness to drop the nap entirely — typically between 2.5 and 3.5 years, though some toddlers nap happily through age 4 and some drop the nap at 2. The 18-month regression occurs during this period. The 2-year sleep regression (less commonly discussed but real) occurs around 24 months and is driven by language explosion, molar eruption, and growing emotional awareness.
| Metric | 18–24 Months | 2–3 Years |
|---|---|---|
| Nighttime sleep | 10–12 hours | 10–12 hours |
| Nap | 1 nap, 1–2 hrs | 0–1 nap, 1–1.5 hrs |
| Total sleep | 12–14 hours | 11–14 hours |
| Wake windows | 5–6 hours | 5–7 hours |
| Suggested bedtime | 7–7:30 PM | 7–8 PM |
Nap transitions are some of the most confusing moments in baby sleep — they are often mistaken for regressions and vice versa. Here is a complete overview of every nap transition from birth through preschool age.
Signs of readiness: baby consistently fights the 4th nap, nap 3 falls so late it pushes bedtime past 9 PM, or baby is taking very short 4th naps. How to transition: simply extend the 3rd nap slightly and move bedtime earlier to compensate. This typically coincides with the 4-month sleep architecture change.
Signs of readiness: baby fights the 3rd nap for 2+ weeks, wake window before the 3rd nap has extended naturally, and baby holds together until bedtime without it. How to transition: cap the 2nd nap so it ends by 3–3:30 PM, then use an earlier bedtime (6:30–7 PM) to bridge the longer wake window. This transition takes 1–2 weeks to fully establish.
Signs of readiness: consistently fighting one or both naps for 2+ consecutive weeks, taking 30+ minutes to fall asleep at nap time, napping fine but then difficult to settle at bedtime. How to transition: move the single nap to midday (11:30 AM–12:30 PM), cap it at 2 hours, and use an earlier bedtime (7 PM) during the transition month while the baby adjusts to the longer wake window.
Signs of readiness: taking 45+ minutes to fall asleep at nap time for 2+ weeks, napping but then unable to fall asleep at bedtime before 9–10 PM, going several days per week without needing the nap. How to transition: implement a "quiet time" instead — 45–60 minutes in the bedroom with books or quiet play. Some children will still nap on some days. Move bedtime 30 minutes earlier to compensate for lost daytime sleep.
⚠️ Regressions vs. Nap Readiness
Never drop a nap during a sleep regression. Regressions cause temporary nap resistance that looks exactly like readiness to drop a nap — but it isn't. Wait until the regression has resolved (2–6 weeks) and the nap resistance continues consistently before concluding the baby is genuinely ready for the transition.
My baby won't follow any schedule — is that normal?
Completely normal, especially under 3 months. Newborns are not biologically ready for a clock-based schedule — their circadian rhythms haven't consolidated. Rather than following a fixed schedule at this age, follow wake windows instead: watch for sleepy cues and put baby down after age-appropriate awake time. True schedule predictability usually emerges between 3–5 months as the circadian rhythm matures.
How do I know if wake windows are right for my baby?
Signs that wake windows are too long: baby takes a long time to fall asleep but wakes frequently, is overtired and wired at bedtime, has short naps. Signs that wake windows are too short: baby takes a long time to fall asleep because they're not tired enough, wakes early from naps, has difficulty settling. The sweet spot is when your baby shows early tired cues (rubbing eyes, losing interest in toys, yawning) right at the end of the wake window.
When should I drop a nap?
Nap transitions are driven by developmental readiness, not a specific age. Signs a baby is ready to drop a nap: consistently fighting the last nap for 2+ weeks, the last nap is very short (under 30 min) or skipped entirely, and the baby holds together well until a slightly earlier bedtime. Never drop a nap in response to a sleep regression — regressions cause temporary nap resistance that is not the same as genuine readiness.
What do I do if my baby naps terribly?
Short naps (30–45 min) under 5 months are largely physiological — babies nap one sleep cycle and haven't learned to link them independently. By 5–6 months, you can begin working on independent nap settling. Check that wake windows aren't too long or too short before the nap, that the sleep environment is dark with white noise, and that there's a brief nap-specific routine that signals nap is coming. If naps remain short beyond 6 months despite good conditions, consulting a certified sleep consultant or your pediatrician is a reasonable next step.
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