When Do Newborns Sleep Longer?

Understanding Newborn Sleep Patterns

Newborns typically start to sleep for longer stretches when they reach about 2-3 months of age. Initially, newborns may sleep for only 2-4 hours at a time due to their small stomachs needing frequent feedings, both during the day and night. As they grow and their stomach capacity increases, they gradually begin to sleep for longer periods. By the time they are 6 months old, many infants are capable of sleeping through the night, which generally means about 6 to 8 hours in a row.

However, it’s important to note that all babies are different, and there’s a wide range of what’s considered normal when it comes to sleeping patterns. Some babies might start sleeping for longer stretches earlier, while others might take a bit more time.

First Few Weeks

Babies in their first few weeks of life are adjusting to life outside the womb, and they have not yet developed a circadian rhythm – the biological clock that regulates the cycle of sleep and wakefulness. During this period, newborns may sleep anywhere from 14 to 17 hours a day, broken into short intervals.

2-3 Months Old

At this stage, you might notice a few longer sleep stretches, especially at night, which can be around 4-5 hours long. This is when babies may begin to sleep more at night and be more awake during the day.

4-6 Months Old

Many infants are capable of sleeping for a stretch of 8 hours or more at night by the time they’re 4 to 6 months old. They typically have a more predictable nap schedule at this point, with two to three naps per day.

Factors Influencing Newborn Sleep Duration

Sleep duration in newborns isn’t solely about age. Several factors can influence how soon your baby starts sleeping for more extended periods.


Whether you breastfeed or formula-feed can make a difference in your baby’s sleep patterns. Breastfed babies may need to eat more often as breast milk digests quicker than formula, leading to more frequent awakenings at night for feedings.

Developmental Milestones

As babies grow, they will go through growth spurts and developmental milestones that might disrupt their sleep patterns temporarily. These are normal and can happen when they learn new skills such as rolling over, crawling, or teething.

Infant Temperament

Some babies naturally have a calmer disposition and might be less sensitive to environmental changes, which could help them establish longer sleep durations earlier.

Health and Comfort

A newborn that’s dealing with discomfort from gas, reflux, or allergies may have more difficulty sleeping for long periods. Ensuring your baby is healthy and comfortable can help them sleep better.

Sleep Environment

Creating an ideal sleep environment is key to helping your baby sleep longer. This includes maintaining a comfortable room temperature, using a white noise machine to mask household or street noises, and ensuring the sleeping space is dark and quiet.

Establishing a Sleep Routine

Helping your baby develop good sleep habits early on can encourage longer sleep durations as they grow.

Sticking to a Schedule

Babies benefit from a consistent sleep schedule. By establishing a routine, you’re helping to set your baby’s internal clock, making it more likely that they’ll start sleeping at regular times.

Bedtime Routine

A calming bedtime routine may include a bath, a book, and some cuddle time. This routine can signal to your baby that it’s time to wind down for sleep.

Daytime Naps

While it might seem counterintuitive, ensuring that your baby gets enough sleep during the day can actually help them sleep better at night. Overtired babies often have more difficulty falling asleep and staying asleep.

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Safe Sleep Practices

When aiming for longer sleep durations, safety should always come first.

Back to Sleep

Always put your baby down to sleep on their back to reduce the risk of Sudden Infant Death Syndrome (SIDS). This is important for every sleep, including naps.

Clear the Crib

The sleep area should be free of pillows, loose bedding, toys, and bumpers to prevent the risks of suffocation and SIDS.

Room Sharing

The American Academy of Pediatrics (AAP) recommends room sharing (but not bed-sharing) for at least the first 6 months, as this can decrease the risk of SIDS by as much as 50%.

When to Seek Help

If you’re concerned about your baby’s sleep patterns, or if they’re not sleeping long stretches and are older than 6 months, it might be a good idea to talk to your pediatrician. They can help determine if there’s an underlying issue and can provide you with guidance and resources to improve sleep habits.

Recognizing Sleep Disorders

Occasionally, sleep issues can be a sign of underlying sleep disorders. Babies can have conditions like obstructive sleep apnea or could be experiencing excessive nighttime awakenings or insomnia.

Feeding Concerns

If you have concerns about whether your baby is getting enough to eat, which might be affecting their ability to sleep longer periods, your doctor can help assess their growth and intake to ensure everything is on track.

Finishing Thoughts

Every baby is unique, and when they start sleeping longer is influenced by a blend of developmental, environmental, and physiological factors. While a general timeline suggests that babies might begin to sleep for longer stretches between 2 to 6 months, patience is key since some may take a little longer while others may start a consistent sleep routine earlier.

The most important aspect is to ensure that your baby is safe, healthy, and comfortable. A consistent sleep routine, a good sleep environment, and safe sleep practices lay the foundation for encouraging longer periods of sleep. If there are concerns or questions about your baby’s sleep habits, don’t hesitate to reach out to your pediatrician for personalized advice and support. Remember, establishing good sleep habits takes time, but the reward of a tranquil night for both you and your baby is well worth the effort.


  • Aiden Lawrence

    I'm Aiden Lawrence, a certified Sleep Science Coach and senior editor of GoodSleepHub, proud parent of two amazing kids, and a pet lover with a cat and a dog. Join me as we explore the world of sweet dreams and comfy pillows. Let's make bedtime the highlight of your day!

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