
It is generally recommended that babies sleep on their backs for the first 12 months to reduce the risk of sudden infant death syndrome (SIDS). However, once a baby can roll over and has good head and trunk control, typically around 6 months, it is considered safe to let them sleep on their stomach. While some babies may start rolling onto their stomachs earlier, it is important to ensure they have the strength to lift their head and turn it while sleeping on their tummy. Creating a safe sleep environment, free of blankets, pillows, and toys, is crucial to lowering the risk of SIDS and providing peace of mind for parents and caregivers.
| Characteristics | Values |
|---|---|
| Safe sleep position for babies | On their back |
| Safe sleep position for babies over 1 year old | On their stomach or another position |
| Safe sleep position for babies who can roll both ways | On their stomach |
| Safe sleep position to reduce the risk of SIDS | On their back |
| Safe sleep position to reduce the risk of fever, nasal congestion and ear infections | On their back |
| Safe sleep practice | Babies should be placed on a firm sleeping surface with no loose objects in their crib |
| Tummy time | Helps babies develop strength and motor skills |
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What You'll Learn
- Stomach sleeping is soothing for babies but can be dangerous
- Tummy time helps babies develop strength and motor skills
- Babies should sleep on their backs for the first 12 months
- Rolling over and sleeping on their stomach is safer after 4-6 months
- Stomach sleeping increases the risk of SIDS and rebreathing

Stomach sleeping is soothing for babies but can be dangerous
It is a common belief that sleeping on their stomach is soothing for babies. However, this position can be dangerous for infants and is linked to an increased risk of sudden infant death syndrome (SIDS).
Why stomach sleeping is soothing for babies
Babies tend to find the side and stomach position soothing. Karp's methods show how the stomach position, along with other tricks like swaying, swinging, and shushing, activates a calming mechanism in babies that are up to 3 months old. This explains why some babies prefer to sleep on their stomachs.
Why stomach sleeping is dangerous for babies
Stomach sleeping can be dangerous for babies because it increases the risk of SIDS. Sleeping on their stomach means babies are breathing in less air, which can lead to a higher risk of suffocation. This is known as "rebreathing" and occurs when a baby inhales air that they have already exhaled, resulting in lower oxygen and higher carbon dioxide levels in the body.
Additionally, when a baby sleeps on their stomach, the tube leading to their stomach sits above the one leading to their lungs. Due to gravity, any fluids coming up from the stomach can gather at the entrance of the lung tube, increasing the likelihood of choking.
Safe sleep practices for babies
To ensure the safety of your baby, it is recommended to follow safe sleep practices. Babies should always be placed on their backs to sleep on a flat and solid surface with no extra bedding or toys. This recommendation applies until the baby is 1 year old, at which point the risk of SIDS drops dramatically.
Once your baby can roll over independently, they may sleep on their stomachs. Most pediatricians agree that if a baby is strong enough to roll onto their tummy, they can safely sleep in this position. It is important to ensure that the baby is unswaddled on a firm mattress with no loose bedding.
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Tummy time helps babies develop strength and motor skills
It is natural for parents to worry about their baby's sleeping position. While it is generally recommended that babies sleep on their backs, there are some circumstances in which it is okay for them to sleep on their stomachs.
The American Academy of Pediatrics (AAP) recommends that babies sleep on their backs for at least the first year of their life. This is because sleeping on the back reduces the risk of sudden infant death syndrome (SIDS), as well as lowering the risk of ear infections, stuffy noses, and fever.
However, once a baby can roll over independently, it is generally considered safe for them to sleep on their stomach. This is usually around the 6-month mark, although some babies may start rolling over as early as 3 or 4 months. If a baby is strong enough to roll over, they are likely strong enough to lift their head and breathe properly while sleeping on their stomach.
Tummy time is an important part of a baby's development and can help them build the strength and motor skills they need to roll over and sleep on their stomach safely. It is recommended that babies have up to an hour of tummy time per day by the time they are 3 months old. This can be done by placing the baby on their stomach on a blanket for a few minutes at a time, several times a day. As they get used to it, the duration and frequency of tummy time can be increased. Tummy time helps to strengthen the neck, shoulder, back, and core muscles, preparing babies for milestones such as tilting their head, rolling over, and sitting up. It also encourages sensory exploration and visual tracking skills as babies learn to move their heads and observe their surroundings.
In summary, while it is important to follow safe sleep practices and place babies on their backs to sleep, tummy time can help babies develop the strength and motor skills they need to roll over and eventually sleep on their stomachs safely.
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Babies should sleep on their backs for the first 12 months
It is recommended that babies sleep on their backs for the first 12 months to reduce the risk of sudden infant death syndrome (SIDS), suffocation, choking, and overheating. While some babies may prefer to sleep on their sides or stomachs, back sleeping is the safest option, especially for newborns and infants.
Placing your baby on their back to sleep helps to ensure a safe and comfortable sleep environment. It is recommended to use a firm mattress with a fitted sheet and to avoid loose bedding, such as sheets, blankets, or quilts. Instead, dress your baby in appropriate sleep clothing to keep them comfortable throughout the night. It is also important to maintain a comfortable temperature in the room, as overheating has been suspected to play a role in SIDS.
It is advised to continue placing your baby on their back for sleep until they are able to roll both ways (from tummy to back and back to tummy) consistently. At this point, it is generally considered safe to let them sleep on their stomach if they roll onto their stomach during sleep. Rolling over is an important and natural part of your baby's growth, and tummy time during the day can help build the core, neck, shoulder, and arm strength needed for rolling.
It is worth noting that there are varying opinions on the ideal sleep position for babies. Some sources suggest that once a baby can roll both ways and has the strength to lift their head, stomach sleeping becomes safer. However, other sources emphasize that side sleeping is not recommended due to the risk of falling onto the stomach, which is associated with the highest risk for SIDS. It is always best to consult your baby's doctor for personalized advice and to ensure that you are following the most up-to-date safe sleep guidelines.
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Rolling over and sleeping on their stomach is safer after 4-6 months
It is important to place babies on their backs to sleep for the first 12 months. However, once they can roll over by themselves, it is generally considered safe to let them sleep on their stomach. This milestone typically occurs between 4 and 7 months, and it is common for babies to start sleeping on their stomachs around this time.
Rolling over and sleeping on the stomach is considered safer after 4-6 months because, at this stage of development, babies are generally believed to be at a decreased risk of Sudden Infant Death Syndrome (SIDS). SIDS is one of the leading causes of death for babies during their first year, especially within the first 4 to 6 months. Sleeping on the back is recommended to reduce the risk of SIDS, as well as the risks of suffocation, choking, and overheating.
However, once a baby can roll over by themselves, they are generally considered to have the agility and strength to protect themselves from these risks while sleeping on their stomach. They will be able to lift and turn their head and move into a comfortable position if needed. It is important to note that this only applies if the baby is unswaddled on a firm mattress with no loose bedding.
While rolling over and sleeping on the stomach can be safer after 4-6 months, it is still recommended to place babies on their backs for every nap and bedtime until they are one year old. This is because back sleeping has additional health benefits, such as lowering the risks of ear infections, stuffy noses, and fever.
If your 5-month-old is sleeping on their stomach, it is important to ensure they have a strong rolling ability and can roll both ways (tummy to back and back to tummy). It is also crucial to provide a safe sleep environment by using a firm mattress with no loose bedding or other objects in the crib.
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Stomach sleeping increases the risk of SIDS and rebreathing
Sleeping on the stomach is not recommended for babies, especially newborns up to 5 months old, as it considerably increases the risk of Sudden Infant Death Syndrome (SIDS). SIDS is the leading cause of death among infants 1 month to 1 year old. In 2020, approximately 1,389 babies died of SIDS.
Stomach sleeping increases the risk of rebreathing, which is when a baby breathes in their own exhaled air. This air is lower in oxygen and higher in carbon dioxide, which can cause oxygen levels in the blood to drop. Rebreathing often occurs when a baby is face-down on a mattress or another surface, or when something covers their face, such as a blanket, pillow, or toy.
To reduce the risk of SIDS and rebreathing, it is recommended that babies sleep on their backs on a flat and solid surface, with no extra bedding or toys. This is considered the optimal sleep position and is recommended by the American Academy of Pediatrics (AAP) for the first year of a baby's life.
Once a baby can roll over independently, usually around 5 to 6 months of age, it is generally considered safe for them to sleep on their stomach. However, it is important to ensure that they can consistently roll both ways and have good head and trunk control before allowing them to sleep in this position.
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Frequently asked questions
It is generally considered unsafe for babies under 6 months old to sleep on their stomachs due to an increased risk of Sudden Infant Death Syndrome (SIDS). However, if your baby can roll both ways (from tummy to back and back to tummy) independently, it is generally okay to let them sleep on their stomach.
Babies may sleep better on their stomachs because it activates a calming mechanism, mimicking the soothing environment of the womb.
To reduce the risk of SIDS, ensure your baby sleeps on a firm, flat, and solid surface with no extra bedding, pillows, or toys. Stop swaddling once your baby can roll over, and always place them on their back for naps and bedtime until they are at least one year old.
Your baby is ready to sleep on their stomach when they can roll both ways independently and have good head and trunk control.
If your baby wakes up crying after rolling onto their stomach, you can gently turn them onto their back. It takes time for babies to adjust to new sleeping positions, and you can practice tummy time during the day to help them get used to it.











































