If one question occupies every new mom it's: "Is my baby's sleep normal?" The comforting answer: the range of normal is far wider than we imagine — but knowing the approximate numbers eases your worry and helps you build a realistic routine.
Sleep chart month by month
| Age | Total sleep/day | Naps | Longest night stretch |
|---|---|---|---|
| 0–3 months | 14–17 h | scattered (4–6) | 2–4 h |
| 4–6 months | 12–15 h | 3–4 | 5–8 h |
| 7–9 months | 12–14 h | 2–3 | 6–10 h |
| 10–12 months | 12–14 h | 2 | 9–11 h |
| 1–2 years | 11–14 h | 1–2 | 10–12 h |
These are ranges, not targets — a baby who sleeps an hour less but is alert and happy is usually perfectly fine.
Read the sleepy cues before the crying
The secret to easy sleep is catching the "sleep window" before your baby passes it: eye rubbing, ear pulling, distant staring, yawning. A baby past the window becomes overtired — fighting sleep and waking more.
A sleep-friendly environment
- Close to you in the first months: a bedside bassinet makes night feeds easier without fully getting up, while baby stays on their own safe sleep surface.
- Swaddling for the first 2–3 months: a cotton swaddle calms the startle reflex — stop as soon as rolling attempts start.
- Moderate temperature, breathable clothes: a light cotton pajama beats over-bundling.
- Dim light for night feeds — bright light wakes the body clock.
- Muslin blankets for light daytime nap covering.
A bedtime routine (from 6–8 weeks)
A short consistent 15–20 minute routine programs the brain that sleep is coming: warm bath or wipe-down, calm feed, dim lights, steady sound. The same order nightly matters more than the details.
Common sleep-breaking mistakes
- Missing the sleep window — the top cause of bedtime battles.
- Silencing the whole house — a baby who only sleeps in total silence wakes at any whisper.
- Bright lights during night feeds.
- Always inducing sleep in a swing — it becomes a condition they can't sleep without (and unsupervised swing sleep isn't safe).
FAQ
When will my baby sleep through the night? Sleep doctors define it as 5–6 continuous hours — many babies get there between 4–6 months, and some perfectly normal ones after a year. Consistency comes gradually.
Should I wake my baby to feed at night? In the first weeks until birth weight is regained: usually yes, every 3–4 hours, per your pediatrician. After that, with healthy growth, let them stretch their own sleep.
My 4-month-old's sleep suddenly fell apart — normal? Yes — the famous "4-month regression": sleep architecture matures and they briefly wake more. A steady routine carries you through within weeks.
⚕️ Note: This content is general education and doesn't replace your pediatrician's advice. Every child is different.
