When Do Babies Start Sleeping Through the Night?
Most babies start sleeping through the night between the ages of 3 and 6 months. However, this can vary significantly from one baby to another due to factors like developmental milestones, feeding patterns, and individual differences. Understanding when and how a baby starts to sleep longer stretches can help parents set realistic expectations and plan better.
What Is Considered “Sleeping Through the Night”?
Before diving deeper, it’s essential to define what “sleeping through the night” means. While adults might consider a full night’s sleep to be 7-8 uninterrupted hours, for a baby, sleeping through the night often means a continuous stretch of 5-6 hours.
The Newborn Phase: Birth to 2 Months
During the first few weeks of life, babies do not have a regular sleep schedule and sleep in short bursts of 2-3 hours throughout the day and night. This erratic sleep pattern is primarily because newborns have tiny stomachs and need frequent feedings. They are also adjusting to life outside the womb, where they were used to sleeping in a confined, cozy environment.
The Importance of Night Feedings
In these early months, night feedings are crucial. Babies need to eat frequently to gain weight and develop properly. Moreover, night feedings help maintain a mother’s milk supply if she is breastfeeding. As challenging as it may be for parents, waking up every few hours is a natural and essential part of this stage.
Our Top 5 Sleep Aid Picks
Updated September 2026Nature's Bounty Melatonin Quick Dissolve Tablets, 45 Count, 2-Pack
Best for most people. Quick-dissolve melatonin tablets from a widely stocked brand, taken without water. Two bottles per pack.
- Quick-dissolve tablets
- Melatonin
- 45 count × 2
Best when pain keeps you up. Pairs a pain reliever with a sleep aid in one caplet, for nights when headaches or muscle aches are the real problem.
- Naproxen sodium 220 mg
- Diphenhydramine 25 mg
- Non-habit forming
- 80 caplets
MidNite Sleep Aid Chewable Cherry Tablets, 30 Count, 4-Pack
Best chewable. Cherry-flavoured chewables for occasional sleeplessness, no water needed. Four bottles in the value pack.
- Chewable cherry tablets
- For occasional sleeplessness
- 30 count × 4
NOW Foods Melatonin 5 mg, 180 Veg Capsules, 2-Pack
Best value. High-potency 5 mg veg capsules, 180 to a bottle and two bottles per pack, so one order lasts months.
- 5 mg melatonin
- Veg capsules
- 180 count × 2
Natrol Melatonin 10 mg Gummies, 140 Count
Best gummy. Higher-strength 10 mg strawberry gummies for adults who would rather chew than swallow a pill. About a 70-day supply.
- 10 mg melatonin
- Strawberry gummies
- Drug-free
- 140 count
Understanding Sleep Patterns: 3 to 6 Months
At around 3 months of age, many babies begin to show signs of more extended sleep at night. By this time, their stomachs have grown, allowing them to go longer without eating. It’s during this phase that some babies might start sleeping through the night, though it won’t be consistent immediately.
Developing Circadian Rhythms
Babies start to develop their circadian rhythms around 3 to 4 months, which means they begin to differentiate between day and night. Parents can help reinforce this by establishing a bedtime routine, exposing the baby to natural light during the day, and keeping nighttime feedings quiet and dark.
The Role of Self-Soothing
By 5 to 6 months, some babies can self-soothe back to sleep if they wake up during the night. This skill is crucial for sleeping through the night. To encourage self-soothing, parents can put the baby to bed drowsy but awake, allowing them to learn to fall asleep independently.
Challenges That Affect Night Sleep
Despite best efforts, several factors can disrupt a baby’s ability to sleep through the night. These can include growth spurts, teething, illness, and changes in routine, each requiring unique approaches to manage.
Growth Spurts
Growth spurts can happen at any time but are common around 6 weeks, 3 months, 6 months, and 9 months. During these periods, a baby may suddenly need to eat more frequently and may wake up more often at night. These phases usually last a few days to a week.
Teething
Teething can begin as early as 3 months and can cause discomfort and wakefulness at night. Symptoms include drooling, irritability, and a slight fever. Providing a cold teething ring and pain relief can help manage nighttime discomfort.
Illness
Common illnesses such as colds or ear infections can significantly disrupt a baby’s sleep. Keeping the baby comfortable and following up with the pediatrician for appropriate treatments can help manage sleep disruptions during illness.
Establishing Healthy Sleep Habits
Creating a consistent and soothing bedtime routine can help signal to your baby that it’s time to sleep. These routines can include a warm bath, a short book, or a lullaby. Consistency is key; doing the same activities in the same order every night can make a significant difference.
Promoting a Sleep-Friendly Environment
A sleep-friendly environment is quiet, dark, and cool. Investing in blackout curtains can help keep the room dark, even during daytime naps. A white noise machine can be helpful to drown out household noises that might wake the baby.
Safe Sleep Practices
Always follow safe sleep guidelines to reduce the risk of Sudden Infant Death Syndrome (SIDS). This includes placing the baby on their back to sleep, using a firm sleep surface, and keeping the crib free of pillows, blankets, and toys.
Sleep Regression
Around 4 months, many babies experience sleep regression, where they suddenly start waking up more often during the night. This phase is usually temporary but can be challenging. Staying consistent with the bedtime routine and trying not to introduce new sleep crutches can help navigate this period.
The Role of Parental Stress
While focusing on the baby’s sleep, it’s essential to acknowledge parental stress. Lack of sleep can take a toll on parents, making it important to seek support when needed. Sharing nighttime responsibilities, asking for help from family members, and even consulting a pediatric sleep specialist can provide much-needed relief.
Finishing Thoughts
Every baby is unique, and there is no one-size-fits-all answer to when they will start sleeping through the night. While many babies begin to sleep longer stretches between 3 to 6 months, others may take longer. Understanding the factors that influence your baby’s sleep can help you create a conducive environment for better rest. Patience and consistency are key, and remember, this challenging phase is temporary. Adequate support and reliable information can make this journey smoother for both parents and the baby.
By keeping these insights in mind, you can set realistic expectations and take proactive steps to help your baby develop healthy sleep habits that benefit the entire family.
