Baby Not Sleeping Through the Night
Medically reviewed by Dr. Sarah Chen, MD, FAAP · Board-Certified Pediatrician
Content reviewed against published AAP, AAP, CDC guidelines
Last reviewed:
Sleep concerns affect nearly every family at some point. When it comes to baby not sleeping through the night, here is what the guidelines recommend.
The short answer
Waking during the night is biologically normal for babies and does not mean something is wrong. Most babies are not developmentally ready to sleep a full 8-12 hour stretch until at least 6 months of age, and many healthy babies continue to wake once or twice a night well into the first year.
Key takeaways
- Waking during the night is biologically normal for babies and does not mean something is wrong. Most babies are not developmentally ready to sleep a full 8-12 hour stretch until at least 6 months of age, and many healthy babies continue to wake once or twice a night well into the first year.
- Usually normal when: Your baby is under 6 months and wakes to feed during the night
- Call your doctor if: Your baby stops breathing during sleep or has pauses in breathing that last longer than 20 seconds
- Varies by age — see the age-by-age breakdown below
“To reduce the risk of sleep-related infant deaths, the AAP recommends that infants sleep on their backs, on a firm, flat surface, without any soft bedding.”
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What Parents Should Know
According to AAP, CDC guidelines, waking during the night is biologically normal for babies and does not mean something is wrong. Most babies are not developmentally ready to sleep a full 8-12 hour stretch until at least 6 months of age, and many healthy babies continue to wake once or twice a night well into the first year. At 0-3 months, newborns are supposed to wake frequently. Their tiny stomachs need refilling every 2-4 hours, and their sleep cycles are only about 40-50 minutes long. Night waking at this age is a protective mechanism and a sign of healthy development, not a problem to solve. It is generally considered normal when your baby is under 6 months and wakes to feed during the night. However, you should contact your pediatrician promptly if your baby stops breathing during sleep or has pauses in breathing that last longer than 20 seconds.
Normal vs. Concerning
By Age
What to expect by age
0-3 months
Newborns are supposed to wake frequently. Their tiny stomachs need refilling every 2-4 hours, and their sleep cycles are only about 40-50 minutes long. Night waking at this age is a protective mechanism and a sign of healthy development, not a problem to solve.
4-6 months
Sleep architecture is maturing and many babies begin to consolidate longer stretches at night, but 1-3 night wakings are still completely normal. The well-known "4-month sleep regression" is actually a permanent shift in sleep patterns, so things may feel harder before they get easier.
6-9 months
Some babies this age can go 6-8 hours without a feed, but many still benefit from one overnight feed. Teething, separation anxiety, and new motor skills like sitting and crawling can all temporarily increase night waking. If your baby was sleeping longer stretches and starts waking more, it is usually developmental and passes.
9-12 months
By now, most babies are physiologically capable of going without overnight feeds, though some still genuinely need one. Sleep disruptions at this age are commonly linked to standing, cruising, and the major cognitive leap of object permanence. Consistent, gentle bedtime routines continue to be the most evidence-based approach.
12-24 months
Toddlers who still wake once at night are within the range of normal, especially during illness, teething, or big transitions like dropping to one nap. If your toddler is waking frequently and seems truly distressed or excessively tired during the day, mention it to your pediatrician to rule out things like ear infections, reflux, or obstructive sleep issues.
What to Tell Your Pediatrician
- Describe when you first noticed baby not sleeping through the night and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby is over 9 months and waking more than 3-4 times per night consistently, and you're concerned about how it's affecting their daytime function or your own wellbeing.
- Mention if your baby seems to wake gasping, choking, or with very noisy breathing.
- Bring a list of any questions or observations you want to discuss at the appointment.
What Should You Do?
When to take action
- Your baby is under 6 months and wakes to feed during the night
- Night waking increased around a developmental milestone like rolling, sitting, or crawling
- Your baby wakes briefly but settles back to sleep within a few minutes with minimal help
- Night waking coincides with teething, illness, or a schedule change like travel or daylight saving time
- Your baby is growing well, happy during the day, and meeting milestones
- Your baby is over 9 months and waking more than 3-4 times per night consistently, and you're concerned about how it's affecting their daytime function or your own wellbeing
- Your baby seems to wake gasping, choking, or with very noisy breathing
- You've noticed your baby is excessively sleepy during the day despite seemingly spending enough time in bed at night
- Night wakings are accompanied by inconsolable crying that lasts more than 30 minutes and you can't identify a cause
- Your baby stops breathing during sleep or has pauses in breathing that last longer than 20 seconds
- Your baby is very difficult to wake from sleep, seems limp, or has a blue or grey tinge around the lips
- Night waking is accompanied by a high fever, projectile vomiting, or other acute illness symptoms
What You Can Do at Home
- Keep track of when you notice baby not sleeping through the night — noting the time of day, duration, and any triggers can help your pediatrician.
- Remember that your baby is under 6 months and wakes to feed during the night — this is generally within the range of normal.
- At 0-3 months, focus on observation rather than intervention unless your pediatrician advises otherwise.
- Maintain a consistent bedtime routine. Keep the sleep environment cool, dark, and quiet.
- While monitoring at home, seek immediate care if your baby stops breathing during sleep or has pauses in breathing that last longer than 20 seconds.
Related Resources
Milestone Checklists by Age
Track your baby's developmental milestones from birth to 5 years with age-specific checklists.
Baby Sleep Guide
Age-by-age sleep needs, schedules, and evidence-based sleep strategies.
Month-by-Month Development
Detailed monthly development guides from birth through 24 months.
When to Call the Doctor
General guide on when to call the pediatrician, visit urgent care, or go to the ER.
Frequently asked questions
Is baby not sleeping through the night normal?
When should I call the doctor about baby not sleeping through the night?
When is baby not sleeping through the night normal?
What causes baby not sleeping through the night?
What should I mention to my pediatrician about baby not sleeping through the night?
Is baby not sleeping through the night normal at 0-3 months?
Is baby not sleeping through the night normal at 4-6 months?
Should I go to the ER for baby not sleeping through the night?
Does baby not sleeping through the night go away on its own?
References
Doctor Visit Checklist
Bring this checklist to your next pediatrician visit to discuss Baby Not Sleeping Through the Night.
Things to mention
- Describe when you first noticed baby not sleeping through the night and how it has changed over time.
- Note your baby's current age and which age-specific patterns you are seeing.
- Mention if your baby is over 9 months and waking more than 3-4 times per night consistently, and you're concerned about how it's affecting their daytime function or your own wellbeing.
- Mention if your baby seems to wake gasping, choking, or with very noisy breathing.
- Bring a list of any questions or observations you want to discuss at the appointment.
Observations to share
- Your baby is over 9 months and waking more than 3-4 times per night consistently, and you're concerned about how it's affecting their daytime function or your own wellbeing
- Your baby seems to wake gasping, choking, or with very noisy breathing
- You've noticed your baby is excessively sleepy during the day despite seemingly spending enough time in bed at night
Urgent signs to report immediately
- Your baby stops breathing during sleep or has pauses in breathing that last longer than 20 seconds
- Your baby is very difficult to wake from sleep, seems limp, or has a blue or grey tinge around the lips
- Night waking is accompanied by a high fever, projectile vomiting, or other acute illness symptoms
My notes
From ismybabyalright.com — free, evidence-based baby health guides
All content follows our editorial policy and is reviewed against published clinical guidelines.
2,705 evidence-based guides6 authoritative medical sources5 medical advisory board members
Related Resources
Bottom line
Most cases of baby not sleeping through the night are normal. Talk to your pediatrician if your baby stops breathing during sleep or has pauses in breathing that last longer than 20 seconds.
Trust your instincts. If something feels wrong, reach out to your pediatrician. Worrying about your baby means you care — that is a good thing.
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Related Sleep Concerns
How Long Should Baby Be Awake Between Naps?
The ideal awake time between naps (called a "wake window") increases as your baby grows. Newborns may only handle 45-90 minutes awake, while toddlers can manage 4-6 hours. Getting wake windows right is one of the most effective ways to improve nap quality, because both too-short and too-long wake times lead to poor sleep.
Is a Bath Before Bed Really Necessary?
A nightly bath is not medically necessary and some babies with sensitive skin do better with less frequent bathing. However, a warm bath can be a powerful sleep cue because the subsequent body temperature drop triggers melatonin production. If you include a bath, keep it calm and warm rather than stimulating.
How Long Should the Bedtime Routine Be?
An ideal bedtime routine for babies and toddlers is 20-30 minutes. Shorter routines may not give enough time to wind down, while routines longer than 45 minutes can become a stalling tactic. Consistency in the routine order matters more than exact length.
Is My Baby's Bedtime Too Early?
For most babies over 3 months, bedtime between 6:00-8:00 PM is appropriate. A bedtime that is too early can cause early morning wakings (before 6 AM) or long periods of wakefulness in the middle of the night. However, during nap transitions or on days when naps were short, an earlier-than-usual bedtime helps prevent overtiredness.
Is My Baby's Bedtime Too Late?
For babies over 3-4 months, consistently going to bed after 8:30-9:00 PM may result in overtiredness, which paradoxically makes it harder to fall asleep and stay asleep. Cortisol rises when babies are overtired, leading to more night wakings and early mornings. Moving bedtime earlier, even by 15-30 minutes, often improves overnight sleep quality.
Is It Dangerous for My Baby to Sleep in a Car Seat?
Babies should not be left to sleep in car seats outside of the car. Car seat-related deaths are most often caused by positional asphyxia, which occurs when a baby's head falls forward, compressing the airway. While car seats are essential and safe for travel, the AAP recommends transferring your sleeping baby to a firm, flat sleep surface as soon as you reach your destination. Never use a car seat as a substitute for a crib or bassinet.