
The sleep patterns of newborns and infants are quite different from those of adults. Newborns generally sleep 12 to 16 hours in a 24-hour period and do not know the difference between day and night. They also do not have established sleep-wake rhythms. By three months of age, most babies will be sleeping around 14 to 17 hours over a 24-hour period, with 3-3.5 hours of daytime sleep spread across 3-5 naps and around 12 hours of overnight sleep. They will need between 2-2.5 hours of awake time between each nap and before bedtime. The biggest change in a baby's sleep cycle happens at around 4 months old, commonly known as the 4-month sleep regression.
| Characteristics | Values |
|---|---|
| Sleep hours in a 24-hour period | 12-17 hours |
| Number of naps | 2-3 |
| Length of naps | 30 minutes to 2 hours |
| Total daytime sleep | 3-3.5 hours |
| Overnight sleep | 12 hours |
| Awake time between naps and bedtime | 2-2.5 hours |
| Wake window | 75-110 minutes |
| Sleep cycles | Active and quiet sleep |
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What You'll Learn
- Three-month-olds typically sleep for 12-16 hours in a 24-hour period
- Their sleep is unorganised, driven by a biological urge to sleep
- They may take 2-3 naps during the day, lasting 30 minutes to 2 hours each
- Nighttime sleep gets longer at this age, with some sleeping 5-6 hours at a time
- Active sleep may include movement, groaning, open eyes, crying, or irregular breathing

Three-month-olds typically sleep for 12-16 hours in a 24-hour period
Three-month-old infants typically sleep for 12 to 16 hours in a 24-hour period. This sleep is accumulated through a series of naps, and it is rare for newborns to sleep through the night without waking up. The sleep of a three-month-old baby can be divided into two types: active sleep and quiet sleep. During active sleep, newborns may move, groan, open their eyes, cry out, or breathe noisily or irregularly. On the other hand, during quiet sleep, they will lie relatively still, and their breathing will be more even. It is normal for newborns to wake up between these sleep cycles. As they grow older, they will learn to settle themselves and fall back to sleep without any assistance. This ability of a newborn to settle themselves between sleep cycles is called self-settling.
The sleep patterns and behaviours of newborns can vary. Newborns generally sleep for 12 to 16 hours in a 24-hour period and do not know the difference between day and night. They are usually the most unsettled during the first three months and cry a lot because they need help feeding, changing, or settling to get back to sleep. Newborns cry and fuss for almost three hours a day until they are around three to six months old. Some newborns cry even more than this. Their longest periods of crying tend to occur in the late afternoon and evening.
To help your baby sleep, you can offer them a pacifier at bedtime, but don't force it. If you're breastfeeding, wait until breastfeeding is firmly established before introducing a pacifier. It's important to watch out for potential hazards in the crib, such as items with cords, ties, or ribbons that can wrap around a baby's neck or objects with sharp edges or corners. Additionally, be consistent with your baby's sleep routine, and they will soon associate certain steps with sleeping. For example, bathing, reading, and singing can signal the end of the day and help your baby relax and prepare for sleep.
Many infants will settle into a daily sleep routine of 2-3 naps during the day, followed by a longer stretch of "sleeping through the night" after a late-night feeding. Sleeping through the night typically means sleeping for 5 to 6 hours at a time. It is recommended that you place your baby in a crib or bassinet while they are drowsy but still awake, so they learn to fall asleep on their own. Some babies may squirm, whine, or cry a little before falling back to sleep on their own. If your baby wakes up during their sleep time, keep the activity to a minimum.
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Their sleep is unorganised, driven by a biological urge to sleep
In the first three months, newborns do not have established sleep-wake rhythms. Their sleep is unorganised, driven by a biological urge to sleep. They sleep for 12 to 16 hours in a 24-hour period and do not know the difference between day and night.
At this age, it is important to create positive sleep associations for your newborn. Some settling techniques may be hard to keep doing long-term, such as holding your baby until they fall asleep. These can create a negative sleep association, resulting in them needing to be held to fall asleep.
By three months, most babies will be sleeping around 15 hours over a 24-hour period. They will have between 3-3.5 hours of daytime sleep, spread across 3 naps, and around 12 hours of overnight sleep. The National Sleep Foundation recommends that infants up to three months old should get 14-17 hours of sleep over a 24-hour period.
Between 3-6 months old, babies need between 2-2.5 hours of awake time between each nap and before bedtime. This is to ensure they are tired enough to sleep well and get the required amount of sleep. Too much or too little awake time can lead to over or under tiredness, resulting in poor napping and/or poor nighttime sleep.
At this age, it is common for some naps to be short and inconsistent. For example, a baby may take a 2-hour nap in the morning but later in the day take shorter naps lasting only 20-40 minutes. It is important to ensure that no single nap goes longer than 2 hours, so that your baby has enough awake time during the day to meet their developmental milestones and get their daytime calories. Prioritising daytime calories helps work towards longer stretches of sleep at night.
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They may take 2-3 naps during the day, lasting 30 minutes to 2 hours each
Three-month-old babies are more active during the day and more aware of their surroundings. They are also more likely to be tired at night and sleep. However, the range of normal sleep patterns is quite wide.
At this age, babies generally have their days and nights straightened out, with many infants sleeping through the night, which means 5 to 6 hours at a time. However, it's important to note that not all babies will sleep through the night at this age, and it's common for them to take 2-3 naps during the day. These naps typically last anywhere from 30 minutes to 2 hours each.
The sleep patterns of three-month-olds can vary, with some taking a 2-hour nap in the morning and shorter naps of 20-40 minutes later in the day. It's recommended that naps don't exceed 2 hours to ensure babies have enough awake time during the day, which is crucial for their development and meeting developmental milestones.
The National Sleep Foundation recommends that infants up to 3 months old get 14-17 hours of sleep over a 24-hour period. However, individual sleep needs may vary, and some babies may need slightly more or less sleep. The biggest change in a baby's sleep cycle typically occurs around 4 months old, commonly known as the 4-month sleep regression.
It's important to prioritize daytime calories and ensure sufficient awake time to promote longer stretches of sleep at night. Additionally, creating a sleep routine that prioritizes the baby's feeding needs is more important than trying to establish a strict sleeping schedule.
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Nighttime sleep gets longer at this age, with some sleeping 5-6 hours at a time
Three-month-old babies are more active during the day, making this a fun age for interaction. They are more awake, alert, and aware of their surroundings during daylight hours, which makes them more likely to be tired at night and sleep.
At this age, babies generally have their days and nights straightened out, and many infants sleep through the night, which means 5 or 6 hours at a time. However, it is important to note that the range of normal sleep patterns is still very wide. According to the National Sleep Foundation, infants up to 3 months old should get 14-17 hours of sleep over a 24-hour period. Many will have settled into a daily sleep routine of 2-3 naps during the day, followed by a longer stretch of "sleeping through the night" after a late-night feeding.
It is worth noting that some babies hit milestones earlier or later than others. If you have any concerns about your baby's sleep patterns, it is recommended to speak with your pediatrician.
Between 3-6 months old, babies generally have between 3-3.5 hours of daytime sleep, spread across 3 naps, with around 12 hours of overnight sleep. They will need between 2-2.5 hours of awake time between each nap and before bedtime. However, it is important to ensure that naps are not longer than 2 hours, as this can impact their nighttime sleep.
Additionally, catnapping, or sleeping for only one sleep cycle at a time (35-45 minutes), can be common between 3-6 months old. This can be caused by under or over-tiredness or a reliance on parent-led sleep associations. To promote longer stretches of sleep at night, it is important to prioritize daytime calories and ensure that your baby is getting enough awake time during the day to meet their developmental milestones.
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Active sleep may include movement, groaning, open eyes, crying, or irregular breathing
A newborn's sleep cycle consists of active sleep and quiet sleep. During active sleep, newborns may move, groan, open their eyes, cry out, or breathe noisily or irregularly. This is a normal part of their sleep cycle, and they will learn to settle themselves and transition to quiet sleep as they get older.
Newborns generally sleep 12 to 16 hours in a 24-hour period and do not initially know the difference between day and night. They are driven by a biological urge to sleep and may simply fall asleep on their own when tired, while others need help to settle. By three months, most babies will be sleeping around 15 hours over a 24-hour period, with 3-3.5 hours of daytime sleep spread across 3-5 naps and about 12 hours of overnight sleep.
The sleep patterns of 3-month-old babies vary, with some starting to sleep longer stretches at night, while others continue taking short and inconsistent naps. The typical wake window for a three-month-old ranges from 75 to 110 minutes, and they need sufficient awake time during the day to meet developmental milestones and get enough calories.
It is important to prioritize a newborn's feeding needs and allow for adequate awake time to ensure healthy development and longer stretches of sleep at night. The biggest change in a baby's sleep cycle typically occurs around four months, commonly known as the four-month sleep regression.
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Frequently asked questions
3-month-old babies should get around 14-17 hours of sleep over a 24-hour period.
Most babies at this age will take 3-5 naps per day, with each nap lasting between 20-40 minutes to 2 hours.
There should be 2-2.5 hours of awake time between each nap and before bedtime.
Yes, a baby's sleep cycle consists of active and quiet sleep. During active sleep, they may move, groan, open their eyes, cry out, or breathe noisily or irregularly.
In the first three months, newborns cry a lot because they need help feeding, changing, or settling to sleep. They also do not have established sleep-wake rhythms and do not know the difference between day and night.











































