Gina Johnson
Understanding a baby's sleep cycle is important for parents to be able to sleep train their babies. Newborns generally sleep 12 to 18 hours in a 24-hour period and do not know the difference between day and night. They do not have established sleep-wake rhythms and sleep in short bursts of 20 to 50 minutes. As they grow, their sleep patterns may continue to change, and they may start to learn the rhythm of day and night at around 3 months of age.
| Characteristics | Values |
|---|---|
| Sleep cycle duration | 20 to 50 minutes |
| Total sleep time | 11 to 19 hours a day |
| Sleep cycle type | Active and quiet sleep |
| Active sleep characteristics | Moving, groaning, opening eyes, crying out, irregular breathing |
| Quiet sleep characteristics | Lying still, even breathing |
| Sleep cycle change | Around 3 months old |
| Circadian rhythm | Not yet established |
| Sleep training | Not possible for most newborns |
| REM sleep | Up to 9 hours of REM sleep daily |
| Sleep position | On their back |
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What You'll Learn
Newborns sleep 12-18 hours a day in short bursts
Newborns typically sleep between 11 and 19 hours a day, with some newborns sleeping for around 8 hours and others for up to 18 hours. This sleep comes in short bursts, known as sleep cycles, which are usually around 20 to 50 minutes long. These sleep cycles consist of active and quiet sleep. During active sleep, a newborn may move around, groan, open their eyes, cry out, or breathe noisily or irregularly. During quiet sleep, they will lie relatively still and their breathing will be more even.
Newborns do not know the difference between day and night and do not have established sleep-wake rhythms. They wake frequently during the night, often because they need to be fed or changed. At around 3 months of age, they may start to learn the rhythm of day and night. To help your newborn learn to sleep more at night, you can expose them to light and play with them during the day, and provide a dim and quiet environment at night.
The first 3 months are an important time for both parents and newborns to learn how to feed and develop a routine together. It is important to create positive sleep associations for your newborn and to prioritise their feeding needs over trying to establish a strict sleeping routine. Newborns' sleep patterns can change a lot in their first year, and the amount of sleep they get can vary from day to day as they grow and develop.
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They don't know the difference between day and night
Newborns generally sleep between 11 and 19 hours a day, in short bursts of 20 to 50 minutes. They do not know the difference between day and night and do not have established sleep-wake rhythms. This is known as day and night confusion, or day and night reversal, and is caused by the drastic transition from the womb to the outside world. It can take time for newborns to adjust to life outside the womb and develop their circadian rhythm, or their internal 24-hour rhythm.
To help your newborn establish a healthy sleep pattern, you can expose them to light and play with them during the day. You can also establish a calm and relaxing bedtime routine that is slightly different from their daytime nap routine. This will signal to your baby that it is time to wind down and prepare for sleep. It is also important to ensure your newborn doesn't nap too much during the day, as this can contribute to day and night confusion.
Additionally, creating positive sleep associations is crucial. Some settling techniques, such as holding your baby until they fall asleep, may create negative sleep associations, resulting in your baby needing specific conditions to fall asleep. It is important to decide what works best for you and your family.
Remember that every baby is unique, and it may take time for them to adjust to life outside the womb and develop their biological clock. Be patient and perseverant during this phase, as it is a challenging but temporary setback.
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Sleep cycles are 20-50 minutes long
A newborn baby's sleep cycle typically lasts 20 to 50 minutes. During this time, they move through light and deep sleep, also known as active and quiet sleep. In the rapid eye movement (REM) stage, or active sleep, newborns may move around, open their eyes, cry, and breathe noisily or irregularly. During the non-rapid eye movement (NREM) stage, or quiet sleep, they will lie relatively still and their breathing will be more even.
Newborns generally sleep 12 to 16 hours in a 24-hour period and do not know the difference between day and night. They do not have established sleep-wake rhythms and wake frequently during the night, often because they need to be fed or changed. At around 3 months of age, they may start to learn the rhythm of day and night.
To help your newborn learn to sleep more at night, expose them to light and play with them during the day. You can also provide a dim and quiet environment at night. It is important to create positive sleep associations for your newborn and to prioritise their feeding needs over a strict sleeping routine.
As a baby grows and develops, their sleep cycles mature and get longer. Over time, the time spent in light sleep decreases. By understanding your baby's unique sleep patterns, you can set schedules, anticipate when it's time for a nap, and figure out if they're crying because they're tired, hungry, or need a diaper change.
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Sleep cycles consist of active and quiet sleep
Newborns generally sleep for 12 to 16 hours in a 24-hour period. However, they do not know the difference between day and night and do not have established sleep-wake rhythms. They sleep in short bursts, known as sleep cycles, which are usually around 20 to 50 minutes long.
During quiet sleep, newborns lie relatively still and their breathing is more even. Quiet sleep is also known as non-REM or NREM sleep, during which the baby is still and does not make the movements associated with REM sleep.
Sleep patterns in newborn babies are mostly affected by their need to be fed. They will wake up when they are hungry, usually every 1 to 3 hours. At around 4 to 8 weeks, a baby's sleep will start to respond more to light and dark, rather than hunger. After 8 weeks, they might also begin to sleep for longer. At 3 to 6 months of age, babies will start to have less active sleep and more deep sleep, beginning to enter deep sleep at the start of their sleep cycles.
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Sleep training is not possible for newborns
Newborns generally sleep between 11 and 18 hours in a 24-hour period. They do not know the difference between day and night and do not have established sleep-wake rhythms. They sleep in short bursts, known as sleep cycles, which are usually around 20 to 50 minutes long.
Sleep training is a common practice that parents turn to in order to coax their baby to sleep by themselves. However, it is not possible for newborns as they have not yet developed their internal body clock or circadian rhythm, which takes around three to six months. During this time, newborns are learning the difference between day and night and are still dependent on their parents for feeding and changing, which are the main reasons they wake up during the night.
Sleep training methods are designed to help babies sleep for several hours through the night on their own and learn to self-soothe if they wake up. The Cry It Out (CIO) method, for example, involves parents putting their baby through a bedtime routine, giving them a kiss goodnight, and then leaving the room, not returning until the next day. This approach can be controversial as many parents feel uncomfortable letting their baby cry without comforting them. It is also a misconception that sleep training is synonymous with the CIO method, as gentler approaches exist, such as camping out and parental education.
Before starting sleep training, it is important to understand your baby's unique sleep patterns and temperament, as well as what works best for your family. While sleep training can help babies and parents get more sleep, it is not suitable for newborns and should only be considered once the baby is 4 to 6 months old.
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Frequently asked questions
Newborns generally sleep 12 to 16 hours in a 24-hour period, but this can vary between 11 to 19 hours.
Newborns sleep in short bursts, known as sleep cycles, which are usually around 20 to 50 minutes long.
Newborns do not know the difference between day and night, but at around 3 months of age, they may start to learn the rhythm of day and night. Their sleep patterns can also change a lot in their first year.
It is important to create positive sleep associations and a safe, comfortable sleep environment for your newborn. You can help your newborn learn to sleep more at night by exposing them to light and playing with them during the day, and providing a dim and quiet environment at night.
