
A four-month-old baby's sleep schedule can be a challenging time for parents. At this age, babies should be settling into a more predictable 24-hour rhythm of sleeping and eating, with most needing between 1.5 and 2.5 hours of wakefulness before they are ready for sleep again. However, the maturation of their internal clock (circadian rhythm) can cause a temporary disruption to sleep patterns, resulting in the 4-month sleep regression. During this time, naps may become shorter, more irregular, and harder to settle into, with increased night wakings and shorter naps. Nevertheless, it's important to remember that every baby is unique, and their sleep needs will vary.
| Characteristics | Values |
|---|---|
| Total Sleep Time | 12-17 hours a day |
| Daytime Sleep Time | 2-4 hours |
| Number of Naps | 3-4 naps |
| Nap Duration | 30 minutes to 2 hours |
| Nighttime Sleep Time | 6-12 hours |
| Sleep Regression | May occur |
| Sleep Training | Can be considered |
| Sleep Surface | Crib |
| Room-Sharing | Recommended |
| Bed-Sharing | Not recommended |
| Sleep Position | On the back |
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What You'll Learn

A typical 4-month-old should sleep between 12 and 17 hours a day
A typical 4-month-old baby should sleep between 12 and 17 hours a day. This includes nighttime sleep and three or four naps. However, it's important to remember that every baby is unique, and their sleep patterns can vary. Some babies may experience sleep regression at this age, which can cause changes in their sleep patterns and increased night wakings.
To improve your baby's sleep quality, it is essential to establish a consistent sleep routine. This can be achieved by following the natural cycle of eat, wake, and sleep. By maintaining a regular schedule, your baby will learn to recognise when it's time to eat, play, and sleep. Additionally, creating soothing bedtime rituals, such as a warm bath followed by stories or singing, can help signal the end of the day and prepare your baby for sleep.
It is also important to ensure that the sleeping environment is safe and comfortable. The room should be quiet and relaxing, with minimal distractions and potential hazards. All sleep surfaces and products should meet safety standards to prevent any safety risks. Room-sharing is recommended by the American Academy of Pediatrics (AAP) until the baby's first birthday or for at least the first six months to reduce the risk of sudden infant death syndrome (SIDS).
At four months, your baby may be ready for sleep training. This can help them learn to self-soothe and fall back asleep independently. While there are various methods for sleep training, such as the cry-it-out or Ferber method, it is important to consult your pediatrician and choose an approach that aligns with your comfort level. Maintaining a consistent sleep schedule and a safe, soothing environment are key factors in helping your 4-month-old establish healthy sleep habits.
Remember, understanding and managing your baby's sleep can be challenging, and it's normal for their sleep patterns to evolve as they develop. If you have persistent concerns or difficulties, don't hesitate to reach out to your child's doctor or a healthcare professional for guidance and support.
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Sleep regression can cause night terrors and sleep problems
By four months, your baby should be settling into a regular sleep pattern. Most babies this age will sleep for 12-16 hours a day, including a longer stretch at night and at least two naps during the day.
However, this is also a common time for sleep regression, which can cause night wakings and sleep problems. Sleep regression is a normal and temporary period when a baby who was sleeping well suddenly has trouble settling down at bedtime or wakes up frequently during the night. It usually lasts for two to four weeks.
Sleep regression can be caused by a variety of factors, including growth spurts, teething, reaching new milestones, illness, or changes in routine. During sleep regression, you may notice that your baby is fussier, more irritable, and has shorter naps. They may also wake up during the night accompanied by crying or fussiness.
While sleep regression is a normal part of development, it can be frustrating for parents. To help your baby through this time, it's important to maintain a consistent sleep routine, provide soothing reassurance, and encourage independent sleep habits. Try to be patient as your baby adjusts to these changes, and remember that their sleep patterns can change quickly and may even seem to go in reverse.
Sleep regression can sometimes lead to night terrors, which are common in toddlers around 15 to 18 months old. Night terrors usually occur within the first two hours of sleep and can be very distressing for parents. If you suspect your baby is experiencing night terrors, it's important to consult a healthcare professional for guidance.
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Daytime naps are important for development and growth
By the time a baby is four months old, they should be settling into a regular sleep pattern. According to the National Sleep Foundation, they should be sleeping for 12 to 16 hours a day, including a longer stretch at night and at least two naps during the day. The average amount of daytime sleep is about 3 to 4 hours.
Daytime naps are important for a baby's development and growth, and they should not be missed without good reason. Naps help a baby to consolidate what they have learned, aiding brain development. They also give the body time to heal and grow, as growth hormones are released during sleep.
The 4-month mark is often a time of sleep regression, when a baby may start to experience night terrors and their sleep patterns may change. This is because they are developing new motor skills, such as turning and crawling, which can affect the quality and quantity of their sleep. They are also becoming more aware of their surroundings, and their senses are developing, which can cause overstimulation and night terrors.
To help your baby get the best daytime naps, it is important to create a soothing environment. Turn off bright lights, reduce any noise, and use blackout blinds to keep the room dark. You can also sing a lullaby or read a story to help your baby relax. A consistent bedtime routine will help your baby to understand when it is time to sleep and when it is time to be awake.
If your baby is having persistent problems with sleep, it is worth talking to a healthcare professional.
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A bedtime routine can help relax your baby
A four-month-old baby should be well on the way toward having a regular sleep pattern. Most babies this age should sleep 12–16 hours a day, including a longer stretch at night and at least two naps during the day.
However, four-month sleep regression can occur, causing a transition away from a newborn sleep pattern. This can result in difficulty falling asleep, frequent nighttime awakenings, and irritability upon waking.
To help your baby relax and develop healthy sleep habits, you can establish a bedtime routine. This can involve a series of simple steps to signal to your baby that it's time to sleep. A good routine typically involves calm, quiet activities before bed. For example, you can give your baby a warm bath, followed by stories or singing. You can also try swaddling, turning on white noise, rocking, and placing your baby in their crib while they're drowsy but still awake.
As your baby gets older, you can incorporate additional steps such as brushing their teeth, reading books, and dressing them in a sleep sack. Maintaining a consistent bedtime routine can offer your baby a sense of security and structure, helping them relax and prepare for sleep.
It's important to note that every baby is unique, and you should find a routine that suits both you and your baby's needs. Be flexible and patient as you work towards establishing healthy sleep habits.
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Crib safety is important to prevent SIDS
By the time they are four months old, most babies should be settling into a regular sleep pattern. However, this stage of development is often called the "4-month sleep crisis" or ""4-month sleep regression", as babies start to practice motor skills such as turning and crawling, which can affect their sleep. Naps are important for a baby's development and growth, and most babies this age should sleep 12-16 hours a day, including at least two naps.
Crib safety is of paramount importance to prevent sudden infant death syndrome (SIDS). SIDS is the sudden and unexplained death of a baby younger than one year old and is the leading cause of death among infants 1 month to 1 year old. Most SIDS deaths are associated with sleep, which is why it is sometimes called "crib death".
To reduce the risk of SIDS, it is recommended that babies sleep on a firm, flat mattress, never on a pillow, waterbed, sheepskin, couch, chair, or other soft surfaces. The mattress should be covered with a fitted sheet, and no other bedding should be used. Soft objects and loose bedding should be kept out of the crib, and bumper pads should not be used as they can be a suffocation or strangulation hazard.
It is also important to ensure that the crib is free of hazards such as items with cords, ties, or ribbons that can wrap around a baby's neck, and objects with sharp edges or corners. Hanging mobiles, wall hangings, pictures, draperies, and window blind cords could be harmful if within a baby's reach. Babies should always be placed on their backs to sleep, never on their stomachs or sides, as sleeping on the stomach or side increases the risk of SIDS.
Additionally, it is recommended to practice room-sharing without bed-sharing. This means having the baby's crib or bassinet in the same room as the parents, but on a separate sleeping surface. Breastfeeding has also been shown to reduce the risk of SIDS.
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Frequently asked questions
A 4-month-old baby should get between 11 and 17 hours of sleep per day, including nighttime sleep and 2 to 4 hours of naps during the day.
A 4-month-old baby will likely take 3 naps per day, lasting between 30 minutes and 2 hours each.
The 4-month sleep regression is a developmental phase when babies who were sleeping well may suddenly start waking up more often and have trouble settling back to sleep. It is a normal part of development and is caused by neurological development changes as the baby transitions from newborn sleep patterns to more mature sleep stages.
Creating a consistent sleep schedule can help improve your baby's sleep quality. You can do this by following the natural cycle of eat, wake, sleep, which will help your baby understand when it's time to eat, sleep, and play. Soothing activities leading up to bedtime, such as a warm bath, stories, or singing, can also help relax your baby and signal that it's time for bed.
Sleep training is not necessary, but many parents find that it helps their babies learn to sleep through the night. Some popular methods include the cry-it-out method, the Ferber method, and the chair method. It is important to consult with your pediatrician before starting sleep training.











































