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Baby sleep in the first year: what’s normal

Broken nights are part of the first year, not a sign you’re doing it wrong. Here’s what’s normal, what keeps your baby safe, and how to look after yourself too.

⏱ 5 min read📑 11 sections📚 27 sources✅ Reviewed October 2026

By the numbers

Night waking is common, and safe sleep saves lives.

Baby sleep

16–17 hoursa day is how much newborns sleep, often in stretches of only 1 or 2 hours.
12–16 hoursof sleep in 24 hours, including naps, is recommended for babies aged 4 to 12 months.
37.6%of 6-month-olds were not yet sleeping 6 hours in a row at night, in a study of 388 babies.
27.9%of 12-month-olds in the same study were still not sleeping 6 hours in a row.

Safe sleep

~3,400U.S. babies died suddenly and unexpectedly in 2024, including 1,351 from SIDS and 947 from accidental suffocation or strangulation in bed.
Up to 50%lower SIDS risk when babies share their parents’ room (not their bed).
Up to 67×higher risk of sleep-related infant death when a baby sleeps with an adult on a couch or soft armchair.

Parents

62 minutesless sleep a night for mothers, and 13 minutes less for fathers, in the first 3 months after a first baby, compared with before pregnancy.
6 yearsafter a first baby, parents’ sleep had still not fully returned to how it was before.
4–8 weeksafter birth is when most episodes of perinatal depression begin.

How much do babies sleep?

Lots of sleep, but in short pieces, and it changes fast.

Babies sleep a lot, just not in the long stretches adults hope for. Newborns sleep around 16 to 17 hours a day in short bursts, and babies don’t have regular sleep cycles until about 4 months.

🌙 Newborn to 3 monthsSleep, feed, repeat, around the clock.
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The NHS says most newborns sleep more than they’re awake, often about 18 hours in total, waking to feed. The AAP puts it at about 16 to 17 hours, often in stretches of 1 or 2 hours.

Very young babies don’t yet know day from night, so an unpredictable pattern is normal at this age.

🌗 4 to 6 monthsLonger stretches start for some babies.
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Babies aged 4 to 12 months need 12 to 16 hours of sleep in 24 hours, including naps. From 3 to 6 months, some babies sleep 5 to 8 hours or more at night, but not all do.

Babies can’t really follow a schedule before 4 to 6 months, so feeds and naps follow your baby’s cues until then.

🌕 6 to 12 monthsMore sleep at night, fewer feeds for some.
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The NHS says babies this age sleep about 15 hours in total, mostly at night. Some no longer need night feeds, though teething or hunger may still wake them.

Around 8 to 9 months, babies learn that people still exist when out of sight. Bedtime protests often show up around now.

🌈 Every baby is differentRanges are wide, and that’s normal.
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Temperament affects how easily a baby settles, and the age when babies sleep longer stretches varies a lot. The researchers behind one large study suggested parents’ expectations could be adjusted to match this variety.

Your friend’s baby who “sleeps through” is not a test you are failing. Babies are simply different.

Night waking is normal

Many babies still wake at 6 and 12 months, and that’s OK.

In a study of 388 babies, 37.6% of 6-month-olds and 27.9% of 12-month-olds were not yet sleeping 6 hours in a row. Using 8 hours as the goal, 57% of 6-month-olds and 43.4% of 12-month-olds were not there yet.

Not sleeping through the night was not linked with slower mental or physical development, or with mothers’ mood, in that study. The AAP notes it is normal for a 6-month-old to wake in the night and go back to sleep after a few minutes.

🔁 Why babies wakeSmall tummies and short sleep cycles.
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Newborns wake again and again to feed for the first few months, and need fewer night feeds as they grow. Being too hot or too cold can also disturb them.

Some older babies wake because they are used to falling asleep while being fed or rocked, and look for the same help when they stir.

🤱 Feeding and wakingBreastfed babies may wake more. That isn’t a problem to fix.
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In the study, breastfeeding was more common among babies who woke in the night. The authors said this does not show one causes the other.

The AAP notes that breast milk lowers SIDS risk, and more protection comes with breastfeeding for longer. However you feed your baby, a fed baby is the goal.

🫂 You are not alone in thisAlmost every family hits sleep bumps.
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Zero to Three notes that few parents get through the early years without some kind of sleep struggle with their child.

If night waking is wearing you down, When your baby won’t sleep: reasons & what helps walks through causes and gentle options.

Safe sleep: the ABCs

Alone, on their Back, in a Crib, for every sleep until age 1.

There is no guaranteed way to prevent SIDS, but a safe sleep space lowers the risk. Health departments sum up the American Academy of Pediatrics (AAP) guidance as the ABCs: Alone, Back, Crib.

1️⃣ A is for AloneTheir own sleep space, in your room.
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Babies should sleep alone, not sharing a bed or crib with others. The AAP and NIH recommend sharing a room for at least the first 6 months, with baby’s sleep space close to your bed but not in it.

Room sharing can lower SIDS risk by as much as 50%. The AAP advises against bed sharing in all cases, including with twins.

2️⃣ B is for BackOn their back for every nap and every night.
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Place your baby on their back for naps and at night until they are 1 year old, including preterm babies and babies with reflux. Side sleeping is as dangerous as tummy sleeping.

3️⃣ C is for CribFirm, flat and bare.
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Use a crib, bassinet, portable crib or play yard that meets safety standards, with a firm, flat mattress and only a fitted sheet. Any surface tilted more than 10 degrees is not safe for sleep.

Keep out of the sleep space

  • Bumper pads
  • Loose or non-fitted sheets
  • Pillows, quilts and comforters
  • Toys and soft objects
  • Weighted blankets, sleepers or swaddles

Use layers of clothing or a wearable blanket instead of loose blankets.

🌡️ Not too hotOne layer more than you’d wear.
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Overheating raises SIDS risk. The AAP suggests dressing your baby in one layer more than you would wear, and watching for sweating, a hot chest or flushed skin. Keep baby’s head and face uncovered, with no hat indoors after leaving the hospital.

🧷 Swaddling and pacifiersStop swaddling once your baby tries to roll.
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Swaddling doesn’t lower SIDS risk. If you swaddle, always place baby on their back, keep it loose at the hips, and stop when your baby shows signs of trying to roll, usually around 3 to 4 months, sometimes earlier.

Offering a pacifier at naps and bedtime is recommended, even if it falls out. For breastfed babies, wait until feeding is going well. Never hang a pacifier around the neck or clip it to clothing during sleep.

🚭 Smoke-free airNo smoking or vaping around your baby.
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Smoke exposure is a significant SIDS risk factor. Keep your home and car smoke-free, and don’t smoke or vape near your baby, even outdoors.

No product can prevent SIDS. Home breathing or heart monitors don’t lower the risk and shouldn’t replace safe sleep habits.

Safe sleep when you’re exhausted

Real-life moments: night feeds, couches, car seats and helpers.

Most safe sleep slips happen when parents are worn out, not careless. Planning ahead for the hardest moments, like the 3 a.m. feed, makes the safe choice the easy one.

🛌 Feeding in bedIf you might doze off, prepare the bed first.
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If you think you might fall asleep while feeding or comforting your baby in your bed, the AAP suggests removing pillows and blankets first. When you wake, move your baby to their own sleep space.

🛋️ Never the couchCouches and armchairs are never safe for sleep.
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Falling asleep with your baby on a couch, soft armchair or cushion can make the risk of sleep-related death up to 67 times higher. If you feel sleepy while feeding on the couch, move to a safer spot or put baby down in their crib.

⚠️ Higher-risk timesSome situations make bed sharing far more dangerous.
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The AAP says bed sharing is especially risky after alcohol, cannabis or anything that makes you harder to wake, with more than 10 times the risk. Risk is 5 to 10 times higher for babies under 4 months, and 2 to 5 times higher for babies born early or small.

🚗 Car seats, swings and slingsMove a sleeping baby to a flat surface.
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If your baby falls asleep in a car seat, stroller, swing, carrier or sling, move them onto their back on a firm, flat surface as soon as you can.

👵 Grandparents, sitters and daycareEveryone who puts your baby down needs the same rules.
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Safe sleep advice has changed over the years. Share the ABCs with every caregiver, and make sure they keep your baby’s surroundings smoke-, alcohol- and drug-free too.

Try saying: “Things have changed since you raised kids. Our doctor says back, alone and in the crib every time, even for naps.”
🐢 Tummy time while awakeBack for sleep, tummy for play.
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Supervised tummy time while your baby is awake helps their muscles develop and helps prevent flat spots on the head. The AAP suggests building up to at least 15 to 30 minutes a day by 7 weeks.

Day/night confusion and the body clock

Help your baby learn that day is busy and night is boring.

Newborns don’t know the difference between day and night. Most learn it by about 3 to 4 months, and you can gently help.

☀️ Bright, busy daysDaylight, play and normal noise.
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Open the curtains, play and don’t worry about everyday household noise during daytime sleep. Time outside gives babies daylight, which helps them learn that day is for being awake and social.

The AAP notes that longer stretches of daytime wakefulness can help babies sleep longer at night.

🌑 Dim, dull nightsLow light, quiet voices, no play.
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At night, keep lights low, talk quietly and avoid play. Put your baby back down after feeding and changing, and only change them if they need it.

A small, dim light for night feeds means you can see without fully waking either of you.
⏰ Long daytime napsVery long day sleeps may borrow from the night.
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For fussy babies who are wakeful at night, the AAP suggests keeping total daytime naps to about 3 hours and keeping night feeds and diaper changes dim and quiet.

Sleepy cues and simple routines

Spot tired signs early and keep bedtime calm and predictable.

Common sleepy cues

  • Eye-rubbing
  • Fussiness
  • Pulling at ears
  • Yawning
🛁 A routine from the startThe same calm steps each night.
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The NHS suggests a simple, soothing bedtime routine from early on, such as a bath, night clothes and a fresh diaper, a story, dim lights, a cuddle and a lullaby. Keep it calm, because too much excitement before bed can lead to more waking.

In a study of more than 10,000 mothers, young children who had a bedtime routine on more nights fell asleep faster, woke less and slept longer.

😌 Drowsy but awakeFrom about 4 months, a skill you can practice.
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From about 4 months, the AAP suggests putting babies down when they are drowsy rather than fully asleep. This gives them practice falling asleep on their own.

Some nights it won’t work, and that’s fine. Feeding or rocking a baby to sleep is not harmful; it’s one of many choices families make.

🔁 Consistency over perfectionSteady responses help babies adapt.
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Zero to Three notes that changing how you respond from night to night can confuse a baby. Agree with your partner on how you’ll respond, and try to stay consistent.

Crying, and when it feels like too much

Crying is normal. Here’s how to stay calm and safe.

Crying, even long stretches that nothing seems to fix, is normal in babies. The CDC describes a period of increased crying between about 4 and 20 weeks that gets better as babies grow.

🎶 Things to tryCheck needs first, then soothe.
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Ideas from the AAP and CDC

  • Check for hunger, a wet or dirty diaper, being too hot or cold, or signs of illness
  • Gentle rocking, or a walk in a carrier or stroller
  • Holding baby skin-to-skin
  • Offering a pacifier
  • Singing or talking softly
  • White noise or a fan
🚪 If you feel yourself losing itIt’s OK to put your baby down and step away.
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A calm-down plan

  1. Put your baby on their back in the crib, with nothing else in it.
  2. Leave the room and take some slow breaths, or count to 10.
  3. Call a friend, a relative or a helpline, or put on music.
  4. Check on your baby every 5 to 10 minutes.
  5. Go back to soothing when you feel calmer.
Never shake, throw or hit a baby. Shaking can cause serious brain injury. Stepping away is the safe and loving choice.
🤝 Tell every caregiverCrying is the most common trigger for harm.
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The CDC notes that abusive head trauma often happens when a caregiver becomes angry or frustrated by a baby’s crying. Babies under 1 are at greatest risk.

Share your calm-down plan with partners, sitters and relatives, and make it clear they can always call you or hand the baby back.

Your sleep matters too

Ways to protect parents’ rest, together or on your own.

In a large German study, mothers slept about 62 minutes less a night, and fathers 13 minutes less, in the first 3 months after a first baby. Parents’ sleep still hadn’t fully recovered 6 years later.

🔄 Share the nightsSplit the load so each parent gets a longer stretch.
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The NHS suggests a partner can take a feed with expressed breast milk or formula, or take the early-morning diaper change, so the feeding parent can sleep.

Ways families split it

  • One parent takes the first half of the night, the other the second
  • One handles feeds, the other handles burping, changing and settling
  • Take turns sleeping in on weekends
💤 Sleep when you canRest during baby’s sleep, when it fits.
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The NHS suggests sleeping when your baby sleeps, even if it doesn’t match your usual pattern, and notes you don’t need a silent house for daytime naps.

🧭 One leads, one supportsIf one parent does most nights, the other can carry the days.
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In some families one parent does most night feeds. The other can protect their rest by taking the morning, handling meals, or giving them a guaranteed nap.

Try saying: “I’ll take the baby from 6 to 9 so you can sleep. What would help you most tomorrow?”
🏡 Parenting on your ownLet others step in for a few nights.
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If you’re on your own, the NHS suggests asking a friend or relative to stay for a few days so you can rest.

Be specific when you ask: “Could you come Tuesday at 2 and hold the baby while I nap?” is easier to say yes to than “Let me know if you can help.”

When exhaustion becomes a mental-health risk

Tired is normal. Some signs mean it’s time to reach out.

Many new mothers have the baby blues in the first 2 weeks: mild mood changes, worry and exhaustion that pass. Strong mood changes, or ones that last longer than 2 weeks, may be perinatal depression, which usually needs treatment to get better.

🔍 Signs to noticeNot sleeping even when the baby sleeps is one.
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NIMH lists signs such as

  • Extreme tiredness that makes daily tasks hard
  • Feeling sad, worried, hopeless or overwhelmed most of the time
  • Trouble sleeping even when the baby is asleep, or sleeping much more than usual

Partners are often the first to notice these signs.

👨‍🍼 Dads and partners tooAny parent can struggle after a baby.
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Postpartum Support International offers help for fathers and partners as well as mothers. Broken sleep, stress and big life changes affect every parent.

The Pregnancy & after birth guide covers perinatal mental health in more depth.
🌤️ Better sleep can help moodHelping baby sleep sometimes helps parents too.
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In an Australian trial with babies aged 6 to 12 months, mothers with higher depression scores whose families got sleep support had a bigger drop in depression symptoms. The gains lasted at least 4 months.

Sleep help is not a replacement for mental-health care, but it can be one helpful piece.

If you have thoughts of harming yourself or your baby, call or text 988 now, or call 911. You deserve help, and getting it is a strong, caring step.

When and where to get help

When to call the doctor, and support lines for parents.

Call your baby’s doctor right away if…

  • Your baby is under 3 months and has a temperature of 100.4°F (38°C) or higher
  • Your baby has trouble breathing
  • Your baby looks very ill, is unusually sleepy, or is very irritable
  • Your baby is losing weight or not gaining, or spits up or vomits a lot
  • Crying seems different or you think it may have a medical cause

You can also bring sleep worries to any well-baby visit. Your baby’s doctor can check for causes and help you make a plan.

🤱 National Maternal Mental Health HotlineCall or text 1-833-852-6262 (1-833-TLC-MAMA), 24/7.
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Free, confidential support for pregnant and new parents and their loved ones, in English and Spanish, any time of day.

💜 Postpartum Support InternationalHelpLine 1-800-944-4773 (call or text).
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Leave a confidential message and a trained volunteer will call or text you back with support and local resources. Text in Spanish: 971-203-7773. It is not a crisis line.

📞 988 Suicide & Crisis LifelineCall or text 988, 24/7 (U.S.).
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Free, confidential support for anyone in emotional distress. You can also chat at 988lifeline.org.

💬 Crisis Text LineText HOME to 741741 (U.S.).
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A free, 24/7 text line with trained crisis counselors.

🌍 Outside the U.S.Find a free helpline in your country.
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Find A Helpline (findahelpline.com) is a free directory of verified helplines in many countries, by phone, text or chat.

If your baby is not breathing, is blue or won’t wake, call 911. If you are in crisis, call or text 988.

📝 Worksheets for this guide

Fill these in privately in the app. Your answers stay on your phone.

My baby’s sleep logJot down a few days of sleep to spot patterns, or to share with your baby’s doctor.
Our safe sleep checklistCheck your baby’s sleep space and plan for the tired moments.
Our night-shift planSplit the nights so every adult gets some protected sleep.
How am I really doing?A quick, honest check-in on your own mood and rest. Share it with someone you trust if it helps.
🔒 Fill in privately in the Mentally United Wellness App. Free, no ads, no accounts.

Sources

  1. American Academy of Pediatrics (AAP), HealthyChildren.org. A Parent’s Guide to Safe Sleep
  2. Safe to Sleep campaign, Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD), NIH. Ways To Reduce Baby’s Risk
  3. Minnesota Department of Health (2023). Health officials and pediatricians emphasize the ABCs of safe sleep
  4. Centers for Disease Control and Prevention (CDC). Data and Statistics for SIDS and SUID
  5. American Academy of Pediatrics (AAP), HealthyChildren.org (2024). Getting Your Baby to Sleep
  6. American Academy of Sleep Medicine (peer-reviewed) (2016). Recommended Amount of Sleep for Pediatric Populations: A Consensus Statement of the American Academy of Sleep Medicine (Paruthi et al., Journal of Clinical Sleep Medicine 12(6): 785–786)
  7. NHS (UK National Health Service). Helping your baby to sleep
  8. Pediatrics (peer-reviewed) (2018). Uninterrupted Infant Sleep, Development, and Maternal Mood (Pennestri et al., Pediatrics 142(6): e20174330)
  9. ZERO TO THREE. Sleep Challenges: Why They Happen and What to Do
  10. Sleep (peer-reviewed) (2015). Bedtime Routines for Young Children: A Dose-Dependent Association with Sleep Outcomes (Mindell et al., Sleep 38(5): 717–722)
  11. American Academy of Pediatrics (AAP), HealthyChildren.org. How to Calm a Fussy Baby: Tips for Parents & Caregivers
  12. Centers for Disease Control and Prevention (CDC). About Abusive Head Trauma
  13. Sleep (peer-reviewed) (2019). Long-term effects of pregnancy and childbirth on sleep satisfaction and duration of first-time and experienced mothers and fathers (Richter et al., Sleep 42(4): zsz015)
  14. National Institute of Mental Health (NIMH). Perinatal Depression
  15. Postpartum Support International (PSI). Help for Dads
  16. BMJ (peer-reviewed) (2002). Randomised controlled trial of behavioural infant sleep intervention to improve infant sleep and maternal mood (Hiscock & Wake, BMJ 324: 1062–1065)
  17. American Academy of Pediatrics (AAP), HealthyChildren.org. Fever: When to Call the Pediatrician
  18. Health Resources and Services Administration (HRSA), Maternal and Child Health Bureau. National Maternal Mental Health Hotline
  19. U.S. Department of Health and Human Services (2023). HHS Celebrates National Maternal Mental Health Hotline’s First Anniversary; Introduces Updated Number: 1-833-TLC-MAMA
  20. Postpartum Support International (PSI). Help for Moms
  21. Commonwealth of Massachusetts. Postpartum Support (flyer listing the PSI HelpLine)
  22. 988 Suicide & Crisis Lifeline (funded by SAMHSA). 988 Suicide & Crisis Lifeline
  23. Substance Abuse and Mental Health Services Administration (SAMHSA). 988 Suicide & Crisis Lifeline
  24. Crisis Text Line. Crisis Text Line
  25. Substance Abuse and Mental Health Services Administration (SAMHSA). Crisis Text Line (resource listing)
  26. ThroughLine (free international helpline directory). Find A Helpline
  27. International Association for Suicide Prevention (IASP). Crisis Centres & Helplines

This guide is for education and self-care. It is not a diagnosis or a substitute for professional care. Please talk to a counselor or clinical provider about your health. Reviewed October 2026.

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