When Do Babies Start Sleeping Through the Night?

Safe sleep reminder: Always place baby on their back to sleep, on a firm, flat sleep surface in their own crib, bassinet, or play yard, with a fitted sheet only and no loose blankets, pillows, bumpers, stuffed animals, or other soft items.

What “sleeping through the night” actually means

It helps to let go of the image of a baby who goes down at 7 p.m. and doesn’t stir again until sunrise. Clinically, the phrase usually means something more modest: sleeping for at least 6 uninterrupted hours without needing you to come in — not 10 or 12 hours of completely unbroken sleep. That’s a genuinely reachable target, and it’s worth resetting your expectations to it early, because chasing the bigger version can make ordinary nights feel like something is going wrong when it isn’t.

Here’s the part that surprises a lot of parents: everyone briefly surfaces between sleep cycles, roughly 4 to 6 times a night — babies and adults alike. Most adults roll over, resettle, and never remember it happened by morning. A baby’s version of “sleeping through the night” isn’t the absence of these surfacings; it’s being able to drift back down on their own after one, instead of needing you. Whether a baby can do that yet comes down to a combination of things — how developed their self-soothing skills are, how and when they’re feeding, and what greets them in their sleep space when they briefly wake.

A rough shape, by age

There’s real variation baby to baby, and being a bit later than a friend’s baby isn’t a sign anything is wrong. As a general shape of how this tends to unfold:

• Newborn stage: Frequent waking is expected, necessary, and not something to solve. Small stomachs and fast early growth mean regular feeding, day and night.
• Early months: Stretches are still short and can feel unpredictable. Newborn day-night confusion — mixing up day and night — is common here and usually settles out within the first weeks to a couple of months.
• Around 6 months: This is the age at which many babies become physiologically capable of going longer without a nighttime feeding, and a good number begin sleeping in longer blocks. But it’s genuinely close to a coin flip — about a quarter to half of babies this age are still waking overnight, and that’s within the range of normal, not behind it.
• 6 months to a year: Longer stretches become more common, though waking once or twice to feed is still ordinary, particularly for babies who are still building self-soothing skills or who need more calories during the day.

Even once a baby has strung together good stretches for weeks, sleep tends to move in a winding path rather than a straight line. A developmental leap, teething discomfort, illness, or a change in routine can bring back rougher nights for a while — often called a sleep regression. There isn’t strong, settled research confirming that every baby goes through predictable regressions on a fixed schedule, but many caregivers and clinicians do notice recognizable rough patches tied to certain ages. When they happen, they’re a normal wrinkle, not evidence that earlier progress disappeared.

Why your newborn isn’t there yet — and why that’s expected

If you have a newborn, frequent waking is the appropriate rhythm right now, not a problem to fix. Newborns generally need 8 to 12 feedings across 24 hours — roughly every 2 to 3 hours during the day and about every 4 hours overnight. Until your baby has shown consistent weight gain, returned to their birth weight, and been cleared by their doctor or a lactation consultant to go longer between feeds, it’s appropriate to wake them to feed at least every 4 hours overnight if they haven’t already stirred on their own.

This is one of the rare stretches in infant sleep where “let them sleep as long as possible” isn’t yet the goal — feeding comes first, and longer overnight sleep follows once your baby’s growth and feeding are established and their care team gives the go-ahead. Once you are cleared for longer stretches, making sure your baby is getting enough calories during the day can help reduce hunger-driven waking overnight.

Why an older baby might still be waking

Past the newborn stage, a handful of common threads tend to explain continued night waking:

• How sleep gets started. If your baby always falls asleep with help — rocked, nursed, or settled with a held pacifier — they’ll often want that same help to fall back asleep after a normal mid-cycle waking, not just at bedtime. This is one of the most common reasons families see fragmented, shortened sleep even when a baby is healthy and well-fed, and it’s a common reason families begin thinking about building independent sleep skills.
• Wake windows out of step with the day. Babies who stay awake longer than their age can comfortably handle tend to resist settling and wake more at night. Wake windows lengthen steadily across the first year — roughly 30 minutes to 2 hours for newborns, growing to about 2.5 to 3.5 hours by 9 to 12 months — and they’re typically shortest first thing in the morning and longest right before bedtime. Watching your baby’s own rhythm, not just a clock, helps you catch the right moment to start winding down.
• Reflux or physical discomfort. Babies with reflux often struggle to sleep flat, especially if they drifted off mid-feed. Holding your baby upright for a while after feeding, and burping out any trapped air, can improve overnight comfort. If reflux seems to be behind ongoing poor sleep, it’s worth discussing with your baby’s healthcare provider.
• A genuine regression. Illness, teething, a new physical milestone like rolling or pulling to stand, or a change in routine can all show up as a sudden, temporary dip in sleep quality.

A practical toolkit

None of this is about forcing a baby to sleep longer than their body and stage allow — it’s about setting up conditions that make longer, calmer stretches more likely as your baby matures.

• Track wake windows, not just the clock. Following your baby’s age-appropriate awake time helps prevent them from reaching their sleep window past its comfortable point, which otherwise tends to show up as bedtime resistance, more night waking, and early morning waking.
• Build a short, repeated bedtime routine. From around 3 months, a simple sequence — feed, diaper change, a story or lullaby — done in the same order each night can cue your baby that sleep is coming. Keep your voice low and unhurried in the run-up to limit stimulation.
• Get the room right. A cool, dark, quiet room supports better infant sleep. If you use a white noise machine, place it as far from your baby’s sleep space as practical and keep the volume as low as you can while still masking household noise — more distance and less volume, rather than running it loud and close.
• Learn your baby’s sleepy cues — with a caveat. Yawning, fussiness, irritability, and eye rubbing are common signals it’s time to start winding down, though not every baby shows clear cues. Around 10 to 11 months, many babies start masking these cues, so from that age on, a consistent schedule matters more than waiting to spot a signal.
• Consider building self-soothing skills when you’re ready. From around 3 months, some caregivers begin placing their baby in the crib drowsy but still awake. If baby fusses, you can wait a short beat, then pick up and console, then return them to the crib still awake — repeating and gradually stretching the wait as your baby builds the skill. Good conditions to start: you feel ready, your baby is healthy, and they’ve just been fed, cuddled, and changed and are dry. If your family isn’t getting enough sleep, that’s also a fair signal that it may be time to make a change, on whatever timeline feels right for you.
• Keep filling the daytime connection. Feeling calm, secure, and physically connected to you during the day builds the trust that tends to make nighttime transitions smoother — daytime bonding and nighttime sleep skills aren’t separate tracks.
• Give it time. Irregular sleep in the early months is normal and, for most babies, temporary. It tends to ease with your baby’s own developmental readiness plus a bit of routine and environment — not any single trick.

Getting outside support

If frequent night waking, feeds you’d like to phase out, a rough stretch after moving to a new sleep space, nap struggles, or early morning waking are wearing on your family, a professional sleep consultant can offer a structured, personalized plan for your baby’s age and temperament. There’s no single “right” week to start — it’s reasonable whenever you and your baby are both healthy and you feel ready.

When to reach out

• Your baby is extremely fussy or unusually hard to console — this can sometimes point to something worth a medical check, such as reflux or sleep apnea.
• You notice signs that could suggest sleep apnea, such as loud snoring, pauses in breathing, or gasping during sleep.
• Reflux seems to be significantly interfering with your baby’s sleep despite upright positioning and burping after feeds.
• Your newborn hasn’t yet returned to birth weight or been cleared for longer overnight stretches, and you’re unsure how to manage nighttime feeding.
• At any age, contact your baby’s doctor right away if you ever suspect your baby is having trouble breathing.

Sources

Written from primary pediatric sources. This is general information, reviewed editorially rather than by a clinician — it isn’t a substitute for your pediatrician’s advice about your child.

• American Academy of Pediatrics — How Often to Breastfeed (HealthyChildren.org)
• Mayo Clinic — Newborn sleep: Should I wake my baby for feedings?
• Cleveland Clinic — Reflux in Babies: Signs & Treatment
• National Heart, Lung, and Blood Institute — Sleep Phases and Stages