
Newborns need a lot of sleep, usually between 14 and 17 hours a day. But do they sleep better in the light or the dark? While some newborns can sleep well in a lit room, the general consensus is that newborns sleep better in the dark. Darkness helps to signal to their bodies that it is time to sleep, and it prevents stimulation that could disrupt their sleep. It also encourages their bodies to produce melatonin, a hormone that regulates sleep. However, it is important to note that newborns do not develop a circadian rhythm until they are a few months old, so there is no right answer for newborns.
Do newborns sleep better in the dark?
| Characteristics | Values |
|---|---|
| Circadian Rhythm | Newborns do not have a developed circadian rhythm when they are born. |
| Sleep-Wake Cycle | Newborns do not have a consistent sleep-wake cycle when they are born. |
| Sleep Time | Newborns sleep for short periods of time throughout the day and night. |
| Sleep Range | Newborns sleep for anywhere from 30 minutes to 4 hours at a time, and all of these times are healthy and normal. |
| Day and Night Confusion | Keeping the room dark at night and bright during the day can help newborns develop a healthy sleep-wake cycle. |
| Light Stimulation | Light is stimulating for newborns, and darkness promotes the release of melatonin, a sleep hormone. |
| Night Lights | Night lights are not necessary for newborns and can be a source of unnecessary stimulation. |
| Room Temperature | The ideal temperature for newborn sleep is between 68-72 degrees Fahrenheit. |
| Noise | White noise can help newborns sleep better and block out other household or environmental sounds. |
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What You'll Learn
- Newborns don't care where they sleep, but this changes around 8-12 weeks
- Darkness helps to signal to newborns that it is time to sleep
- Light is stimulating to a baby's brain, while darkness promotes sleep
- Babies don't need night lights to sleep, and they can be a source of unnecessary stimulation
- White noise can help newborns sleep better, as it can be louder than a vacuum cleaner in the womb

Newborns don't care where they sleep, but this changes around 8-12 weeks
Newborns have different sleep patterns compared to adults. Their sleep cycles are shorter, and they tend to wake up more often. Newborns also have different sleep requirements, typically needing between 14 and 17 hours of sleep per day.
Newborns don't initially care where they sleep. Their circadian rhythm is still developing, so they don't have a consistent sleep-wake cycle. As a result, they sleep for short periods throughout the day and night. However, this changes as they get older, and from around 8–12 weeks, they start to respond more to light and dark cues.
From around 8 weeks, it's beneficial to keep the room dark at night as this helps signal to their body that it's time to sleep. Darkness also prevents stimulation that could disrupt their sleep and encourages the production of melatonin, a hormone that regulates sleep. During the day, it's recommended to let newborns nap in a light room to help establish their body clock.
While it's important to provide a safe sleep environment for newborns, individual babies may vary in their preferences for light and darkness. Some babies may sleep well regardless of lighting conditions, while others may be more sensitive to light. It's important to focus on getting restorative sleep for your baby and creating a consistent sleep routine.
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Darkness helps to signal to newborns that it is time to sleep
Darkness plays a significant role in signalling to newborns that it is time to sleep. Light acts as a stimulant for newborns, whereas darkness helps calm and settle them.
When babies are first born, their circadian rhythm is still developing, and they do not have a consistent sleep-wake cycle. Their bodies need help determining whether it is time to sleep or be awake. Darkness is an effective signal to their bodies that it is time to rest.
To aid this process, it is recommended to keep the room dark during the night and bright during the day. This helps newborns distinguish between night and day and develop a healthy sleep-wake cycle.
Additionally, darkness promotes the release of melatonin, the sleep hormone, in babies over eight weeks old. This hormone is crucial for settling and sleeping well.
While some parents may worry about their child becoming dependent on darkness to sleep, this is generally not the case. If a child is tired enough, they will eventually fall asleep, even in a well-lit room. However, darkness can help facilitate a faster and more restful sleep.
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Light is stimulating to a baby's brain, while darkness promotes sleep
Light and darkness play a significant role in a baby's sleep. When babies are first born, their circadian rhythm or sleep-wake cycle is still developing, which means they do not yet have a consistent sleep schedule and their bodies need help determining whether it is time to sleep or be awake.
During the day, it is recommended to let your newborn nap in a light room to help establish their circadian rhythm. Light is stimulating to a baby's brain, and a bright room can be too stimulating for sleep. Darkness, on the other hand, promotes sleep by reducing stimulation and signalling to the baby's body that it is time to rest. It also encourages the production of melatonin, a hormone that regulates sleep.
While some parents worry about their baby becoming dependent on darkness to sleep or being afraid of the dark, these fears typically do not develop until the age of two or older. If a child is tired enough, they will sleep regardless of the light, but it may take them longer to fall asleep and they may wake up sooner.
To create an ideal sleep environment for your baby, aim for a dark room that is slightly cool, with consistent noise levels and minimal background noise. Blackout blinds, curtains, or travel solutions like black trash bags can help achieve the desired level of darkness. White noise or soft music can also be used to soothe your baby to sleep and block out sudden noises.
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Babies don't need night lights to sleep, and they can be a source of unnecessary stimulation
It is a common misconception that babies might be afraid of the dark, but this fear typically does not develop until they are two years old or older. In fact, babies are not born with a developed circadian rhythm, or sleep-wake cycle, and it takes time for them to differentiate between day and night. Darkness helps signal to their bodies that it is time to sleep and encourages the production of melatonin, a hormone that regulates sleep.
Babies do not need night lights to sleep, and they can be a source of unnecessary stimulation. Light stimulates the brain, and even a small amount of light can be distracting enough to disrupt a baby's sleep. While night lights can be helpful for parents during night-time feeds or diaper changes, they are not necessary for the baby's sleep. If your baby is sleeping well in a dark room and has not expressed any fear or asked for a night light, there is no need to introduce one.
However, it is important to note that this advice applies to babies who are already sleeping well. If your baby is struggling to settle or sleep, a pitch-black room may not be the solution. In such cases, gradually adding light to the room can be beneficial. Additionally, some babies may prefer a quiet environment, while others can settle and sleep with background noise. White noise, soft music, or nature sounds can be soothing and help block out sudden noises that might wake your baby.
For newborns, it is generally recommended to let them nap during the day in a light room to help establish their circadian rhythm. As they get older, around 8-12 weeks, they become more aware of their surroundings, and a bright room may become too stimulating for sleep. At this stage, a dark room can be very calming and help them settle and sleep better.
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White noise can help newborns sleep better, as it can be louder than a vacuum cleaner in the womb
While it is recommended that newborns sleep in a dark room, white noise can also help them sleep better. White noise is the combination of all the frequencies that the human ear can identify, all occurring at the same intensity. This type of noise is not only soothing to babies but also to people of all ages.
White noise can be louder than a vacuum cleaner, and this is a sound that babies are familiar with, as it resembles the noises they heard in the womb. The womb is a noisy place, with sounds that can be likened to a low-roaring jet engine or a gush of running water. White noise can help to recreate this comforting, familiar environment, providing a "blanket of sound" that blocks out other, sleep-disrupting noises.
White noise machines can be used during a baby's bedtime routine, throughout their naps and night sleeps, and whenever you need help calming your baby's crying. When using a white noise machine to soothe your baby, make sure it is as loud as your baby's cries. You can then turn it down to a normal level once your baby has calmed down.
It is important to note that not all white noise is created equal. Sounds like jungle noises, heartbeats, and birds chirping are not considered white noise. Additionally, high-pitched white noise can be harsh and annoying, so it is best to opt for low-pitched, continuous, and monotonous sounds, like a hairdryer, shower, or vacuum cleaner.
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Frequently asked questions
Yes, newborns sleep better in the dark. Darkness helps to signal to their bodies that it is time to sleep and encourages the production of melatonin, the sleep hormone. However, newborns don't care much about their sleep environment, so light won't bother them as much when they're very young.
The room should be so dark that you can't see your hand in front of your face. This can be achieved through blackout blinds, curtains, or by covering the windows with black trash bags.
Newborns sleep better with some background noise, as the womb can be as loud as a vacuum cleaner. White noise, soft music, or rain sounds can help newborns sleep and block out sudden noises. To prevent day and night confusion, it's also important to regulate their circadian rhythm by always waking them at the same time each morning and heading towards a consistent bedtime at night.









































