“Is she sleeping through the night yet?” might be the most-asked question new parents hear, and the most stressful. The truth is gentler than the question suggests: babies are designed to wake at night, and sleeping through is a skill that develops over months, not a test you pass or fail. This guide shows you what to expect and how to help. It’s part of our baby sleep guide by age.
Every tip below starts from a safe sleep space: on the back, in an empty crib, in your room for at least the first 6 months. See our safe sleep checklist.
What does “sleeping through the night” actually mean?
“Sleeping through the night” usually means a stretch of about 5 to 8 hours, not 12 uninterrupted hours. Sources define it differently: Cleveland Clinic describes five to six hours at a stretch, while the NHS says some babies sleep 5 to 8 hours or longer by 3 to 6 months.
Even then, your baby will still surface between sleep cycles. The AAP puts it well: a good sleeper is a child who wakes up frequently but can get back to sleep. The goal is a baby who can resettle, not one who never stirs.
At what age do babies sleep through the night?
There’s a wide normal range:
| Age | What’s typical |
|---|---|
| 0–3 months | Waking every few hours to feed; no regular sleep cycles yet |
| 3–6 months | Some babies sleep 5–8 hours or longer at night, but not all (NHS) |
| Around 6 months | Most babies can manage 5–6 hours at a stretch (Cleveland Clinic) |
| 6–12 months | Waking once or twice, or even more, is still common |
Cleveland Clinic notes it’s natural for babies in the first year to wake once or twice or as often as six times a night. If your baby is waking more than you expected, you’re not alone.
7 tips to help your baby sleep through the night
1. Keep a consistent bedtime routine
The same short wind-down every night, in the same order, tells your baby sleep is coming. Our step-by-step bedtime routine works from the baby months into the toddler years.
2. Practice drowsy but awake (from about 4 months)
The AAP suggests that for babies 4 months and older, you put them to bed drowsy rather than fully asleep. Babies who fall asleep in their crib are more likely to resettle there when they surface at 2 a.m. Start with bedtime; naps can follow.
3. Pause before responding
When your baby stirs, wait a moment. The AAP notes it’s normal for a 6-month-old to wake during the night and go back to sleep after a few minutes. If they’re hungry, unwell or truly upset, go to them.
4. Make the room dark, cool and steady
- Dark: blackout curtains, and only a dim light for night feeds.
- Cool: the Lullaby Trust recommends 16–20°C (about 61–68°F). Dress your baby in light layers or a sleep bag, never loose blankets in the first year.
- Steady, quiet sound: a soft white noise, rain or womb sound masks the doorbell, siblings and traffic that can wake a baby from light sleep. Keep it around 50 dB or lower with the device about 2 m (7 ft) from the crib. See is white noise safe for babies.
Real previews from the app. Play them softly.
5. Keep night wakings boring
Low light, quiet voices, no play. Feed, burp, change only if needed, and back down. Bright screens and chatty interaction wake babies more fully.
6. Watch for overtiredness
Overtired babies often sleep worse, not better. Watch for early sleepy cues such as yawning, rubbing eyes and staring off, and start the routine before your baby is frantic.
7. Ride out the regressions
Sleep often wobbles during developmental leaps, especially around the 4 month sleep regression when sleep cycles mature. Keep your routine steady and it usually settles within a week or a few weeks.
Why does my baby wake at 5 a.m.?
Early waking is one of the most common complaints, and it usually has a fixable cause:
| Likely cause | Try this |
|---|---|
| Early sunrise | Blackout curtains or blinds |
| Birds, traffic, early risers in the house | A soft, steady sound that keeps playing until morning |
| Overtired at bedtime | Move bedtime 15–30 minutes earlier for a week |
| Too much daytime sleep late in the day | Cap or move the last nap earlier, within your baby’s needs |
| Hunger (younger babies) | Ask your pediatrician about feeds |
If your baby wakes at 5 a.m. happy and rested, and has had enough total sleep for their age, it may simply be their natural wake time. Keep the room dark and quiet until a time you choose, so morning starts on your terms.
Contact naps: how to transition gently
Contact naps, where your baby only sleeps on you, are common and lovely, and they aren’t a problem unless they’re a problem for you. When you’re ready to change:
- Start with one nap a day, usually the first, when sleep pressure is high.
- Use the same cues as at night: dim room, sleep bag, the same sound.
- Hold your baby until drowsy, then lay them on their back in the crib with a hand on their chest for a moment.
- Build up slowly. A short crib nap is still progress.
Never doze off with your baby on a sofa or armchair. If you might fall asleep, put your baby in their crib.
Sound all night, or a timer?
Families do both. A continuous, low sound keeps the room consistent across sleep cycles, which is helpful in noisy homes or for early wakers. A timer that fades out keeps total exposure lower. We weigh both approaches in can babies sleep with white noise all night.
In the Baby Mantra app, you choose: a sleep timer of 15 minutes to 2 hours with a gentle fade-out, or all-night play with lock-screen controls. Dim night mode keeps the screen almost dark for night feeds, and everything works offline, so there’s no buffering at 3 a.m.
Sources
- HealthyChildren.org (AAP). Sleeping Through the Night.
- HealthyChildren.org (AAP). Getting Your Baby to Sleep.
- NHS. Helping your baby to sleep.
- Cleveland Clinic. Will My Baby Ever Sleep Through the Night? Sleep in Your Baby’s First Year.
- The Lullaby Trust. Your baby’s room temperature.
- American Academy of Pediatrics. Sleep-Related Infant Deaths: Updated 2022 Recommendations for Reducing Infant Deaths in the Sleep Environment. Pediatrics, 2022.
