Sleeping through the night is a baby milestone that many exhausted new parents dream about.
Progress may feel inconsistent in the first few months, but there are many reasons why your baby may be having trouble sleeping – and how you can help.
Advertisement | page continues below
Key Takeaways
- Many babies start sleeping for 6 hours at around 3 months of age.
- Sticking to a bedtime routine, planning naps strategically, and trying a pacifier are just a few ways to improve your baby’s chances of sleeping longer.
- If your baby doesn’t sleep through the night, it could be because of teething pain, regular sleep regression, or hunger.
What is considered sleeping during the night?
For babies, “sleep through the night” is generally considered to be sleeping for at least six consecutive hours without a night feed.
While babies will wake up briefly – possibly more than once – during this period, they can fall asleep on their own. (Which means you I can finally rest well.)
When do babies sleep through the night?
Research suggests that many babies can sleep at least six hours at a stretch until about 3 months of age, or when they weigh 12 to 13 pounds.
According to National Sleep FoundationOpens a new windowan estimated 62% of babies sleep through the night by 6 months – a number that rises to 72% by 12 months. This is because by about 6 months, babies’ sleep cycles are generally more regular and predictable.
When yours Although a baby will sleep through the night, it varies, depending on a number of factors (including when they can go for long periods without a night feed).
“My firstborn didn’t sleep through the night until close to a year. He still gets up at night occasionally at 3,” she says BabyCenter Community Member Mama2b2023. “My second born, 7 months old, slept through the night (11am to 1pm) from 8 to 10 weeks. He’s only woken up maybe five times a night since then. Every baby is different.”
Advertisement | page continues below
As you can see, there is a wide range of normal. Many babies do not sleep through the night at 6 months or even a year.
9 tips to get your baby to sleep through the night
Here are some tips to help your baby sleep through the night.
And if you want more specific advice from a pediatric sleep doctor, check out ours Baby Sleep 101 courseOpens a new window.
Your baby I can be a good sleeper
Get solutions from a top pediatric sleep doctor with our Baby Sleep 101 course
- Play during the day. Keeping babies active during the day helps them sleep longer at night.
- Be strategic with your naps. At 6 months of age, babies need two to three daily naps (one in the morning, one in the afternoon and maybe a third in the late afternoon). Learn and watch for signs that your baby is tired and needs to rest, and let her sleep as long as she needs. But if your baby has a third, late afternoon, try to cut it out of your routine until about 9 months so you can get her to sleep the night before.
- Set a consistent bedtime. Since you’re trying to get your baby on a more regular sleep schedule, it’s important to put your baby to bed at the same time every night. Monitor your baby’s rhythms – if he’s a night owl, set a later bedtime.
- Establish a routine. Bath, book, song, bed: bedtime routines are the secret sauce for baby’s sleep. It’s also a good idea to dim the lights and ensure your baby is in a calm and quiet environment about half an hour before bedtime.
- Do not rock your baby to sleep. Put the baby to bed sleepy but awake. This helps to avoid developing a dependency on you to fall asleep and makes it easier for your baby to fall back asleep on their own when they wake up at night.
- Teach your baby to self-soothe. As with adults, it is completely normal for a baby to wake up briefly several times during the night. But you can help your baby learn to go back to sleep by waiting a few minutes before responding to the disturbance. That way, they will have a chance to fall asleep on their own again.
- Try a pacifier. A pacifier can help your baby self-soothe, and using one at night has been shown to reduce the risk of sudden infant death syndrome (SIDS).
- Do not wake the baby to eat. After the first few weeks of life, many healthy babies who are steadily gaining weight do not need to wake up to feed during the night. If you do have to pick up your baby for a feeding or diaper change at night, keep the lights dim so you don’t wake your child up more than necessary.
- Consider sleep training. Sleep training can help your baby learn to self-soothe and sleep through the night. You can start sleep training starting at 4 to 6 months, when baby’s circadian rhythm and sleep cycles are better established and they are starting to fall asleep on their own. There are many different methods, from the “cry it out” method to the “fading” method. Choose the technique that works for your baby and family.
A note on sleep training from Liz Donner, MD, a pediatric nurse practitioner and member of the BabyCenter Medical Advisory Board: “The ideal training method will vary depending on parent preference, bedroom setup, presence of other siblings, age of child, etc. I personally believe that it is important for a child of any age to know that you are available if and when they need you. That doesn’t mean sleeping with you will give them the comfort and reassurance they need, even if it’s just a quick peck on the cheek.”
Advertisement | page continues below
You may have heard that adding rice flakes to an evening bottle will help your baby sleep better or longer, but there is no evidence that it helps. In fact, it is a choking hazard and can cause constipation.
In addition, offering solid foods too soon can deprive your baby of the necessary nutrients in breast milk or formula. The American Academy of PediatricsOpens a new window (AAP) recommends that babies start solid foods when they are developmentally ready, usually around 6 months of age.
When do babies start sleeping longer?
Many babies start sleeping five to six hours by 3 months. At some point in the first year, your baby may sleep for nine to 12 hours without needing to eat, although this varies greatly from baby to baby.
My firstborn didn’t sleep through the night until close to a year. … My second born slept through the night from 8 to 10 weeks old. Every baby is different.
– Community member BabyCenter Mama2b2023
See how much sleep babies need at each age.
When do breastfed babies sleep through the night?
Formula-fed and breastfed babies are equally likely to sleep through the night by 6 months of age, research shows.
Advertisement | page continues below
You may have heard that formula supplementation will help everyone sleep better. But the research is far from conclusive that formula use has any effect on a baby’s ability to sleep.
One recent study found that formula-fed moms got the same average hours of sleep as those who breastfed any amount when their babies were 3, 6, and 9 months old.
Exclusive breastfeeding, however, resulted in less sleep for mothers in the early months – although these differences disappeared when the babies were 9 months old.
Other studies, however, have shown that exclusively breastfeeding mothers actually sleep for 30 minutes more than those who are formula fed when their baby is one month old, with the same number of night wakings.
Breastfed babies tend to eat more often in the first few weeks, and breast milk is digested faster than formula. Plus, your baby absorbs and uses nutrients from breast milk better than those from formula—which is one of the many reasons why the AAP recommends exclusive breastfeeding, if possible, for the first six months of life.
Advertisement | page continues below
Fortunately, biology provides a solution to some breastfeeding challenges. Breast milk contains hormones, including leptin and melatonin, that promote satiety and sleep in babies.
Breastfeeding mothers also produce the hormone prolactin, which helps them not only adjust to the stressful parts of caring for a baby—including sleep disruption—but also to sleep more deeply when they nap.
Bottom line: Don’t feel like you have to rely on formula to help your baby sleep better. If you’re able to exclusively breastfeed, you’re very likely to get close to the same amount of sleep as you would with formula—especially as your baby gets older.
7 reasons why your baby may have trouble sleeping through the night
There are a number of reasons why babies may have trouble sleeping through the night, which often differ depending on the age of your baby. This may include:
- Hunger. From birth to 3 to 6 months of age, babies need night feeding. And older babies are used to eating several times during the night, so they can continue to wake up to eat. If your baby is at least 4 to 6 months old, you can consider night weaning.
- Separation anxiety. Your baby may cry during the night because he is afraid that you are not there. Comfort your baby by gently touching his head and talking to him gently. That way, he’ll take comfort in knowing you’re there, but won’t associate fussiness with petting.
- Inability to self-soothe. Although it can be difficult at first, remember that you don’t have to react immediately when your baby is upset. In fact, letting your baby fuss for a few minutes allows her to learn the important skill of self-soothing and going back to sleep.
- Bed sharing. The AAP recommendsOpens a new window share a room but not a bed with the baby for the first six months. Bed sharing affects your baby’s ability to sleep through the night and increases the risk of SIDS.
- Sleep regression. Sometimes even the lightest sleepers can wake up again. Sleep regression is common at 4, 6, 8, 12, and 18 months, due to a number of factors.
- Teething. Just when you think you’ve made a decent stride with sleep, teething pain starts waking your baby up at night. This can happen as early as 3 months, but usually happens between 4 and 7 months. Stick to your normal sleep routine and remember, this too shall pass!
Advertisement | page continues below
“We have a baby who now sleeps from 7 p.m. to 6 a.m., but it took four days of sleep training and night weaning,” he says. BabyCenter Community member check 1. “Now we got a lot of rest, but it didn’t just happen – we had to change course ourselves!”
Not all babies will hit every sleep milestone all the time – that’s normal. However, if at any time you have questions about your baby’s sleep schedule (or lack thereof), talk to your baby’s healthcare provider.
This is an exhausting time for you too, so make sure you take care of yourself and see your doctor.