
It is generally unsafe for babies to sleep on their stomachs, as it increases the risk of sudden infant death syndrome (SIDS). Sleeping on the stomach can also cause rebreathing, where the baby inhales exhaled air, leading to higher carbon dioxide and lower oxygen levels in the body. However, once a baby is older and can roll both ways confidently, it is generally considered safe to let them sleep on their stomach. This usually happens between 4 and 7 months, but some babies may start rolling as early as 3 or 4 months.
| Characteristics | Values |
|---|---|
| Safe sleeping position for babies | On their back |
| Safe sleeping position for babies under 1 year | On their back |
| Safe sleeping position for babies under 6 months | On their back |
| Risk of sleeping on the stomach | Increase the risk of sudden infant death syndrome (SIDS) |
| Risk of sleeping on the side | Baby can roll onto their stomach |
| Risk of rebreathing | Higher when sleeping on the stomach |
| Risk of suffocation | Higher when sleeping on the stomach |
| Mattress type | Firm, flat, and solid surface |
| Swaddling | Should be stopped once the baby can roll over |
| Tummy time | Should be supervised and can help prevent flat spots on the baby's head |
| Rolling over | Babies can start rolling over at 3-4 months |
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What You'll Learn
- Stomach sleeping is unsafe for babies as it increases the risk of SIDS
- Babies should sleep on their backs for the first 12 months
- Babies can sleep on their stomachs once they can roll both ways
- The risk of SIDS is reduced by 50% when parents share a room with their baby
- Swaddling should be stopped once babies can roll over

Stomach sleeping is unsafe for babies as it increases the risk of SIDS
It is unsafe for babies to sleep on their stomachs as it increases the risk of sudden infant death syndrome (SIDS). SIDS refers to the unexpected death of a healthy infant, usually during sleep. While the exact cause of SIDS is unknown, extensive research has shown that the risk of SIDS occurring is significantly higher when babies sleep on their stomachs.
Stomach sleeping can cause babies to breathe in their own exhaled breath, increasing the risk of suffocation and overheating. This is known as "rebreathing", where a baby inhales air that is lower in oxygen and higher in carbon dioxide, leading to a drop in oxygen levels in the blood. Additionally, tummy sleeping may cause a sudden decrease in blood pressure and heart rate control.
To reduce the risk of SIDS, it is recommended that babies sleep on their backs for the first 12 months of their lives. Back sleeping improves airflow and allows babies to breathe in the oxygen they need without breathing in expired air. It is important to consistently place babies on their backs for every sleep, including naps, until they are at least one year old.
Once a baby can roll both ways (from tummy to back and back to tummy) confidently, it is generally considered safe to let them sleep on their stomach. This usually occurs between 4 and 7 months of age, but it is important to ensure that the baby can comfortably roll in both directions before leaving them in the stomach-sleeping position.
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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 of their life. Sleeping on the back is considered the safest position for a baby to sleep in, as it can help prevent sudden infant death syndrome (SIDS).
Placing a baby on their back to sleep is recommended by various health organizations, including the American Academy of Pediatrics (AAP). The AAP's "Back to Sleep" campaign, launched in 1994, has been successful in reducing SIDS-related deaths by 50% in six years. Despite common misconceptions, sleeping on the back does not increase the risk of choking. In fact, it improves airflow, and a baby's airway anatomy and gag reflex will prevent choking.
Babies should sleep on their backs on a firm, flat surface, with no extra bedding, pillows, or toys. This is because soft mattresses and bedding can increase the risk of SIDS by causing rebreathing. Rebreathing occurs when a baby inhales exhaled air, which is lower in oxygen and higher in carbon dioxide, leading to a drop in oxygen levels in the blood.
Once a baby is older and can roll both ways (from tummy to back and back to tummy) confidently, it is generally considered safe to let them sleep on their stomach if they roll that way during sleep. However, it is still recommended to place them on their back for every sleep until they are at least one year old.
To help babies sleep safely on their backs, swaddling can be used for newborns. However, once babies start showing signs of rolling, it is important to stop swaddling and use a sleep sack instead. Additionally, supervised tummy time during the day can help strengthen babies' neck and core muscles, aiding in their development and making it easier for them to roll independently.
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Babies can sleep on their stomachs once they can roll both ways
It is generally advised that babies sleep on their backs for the first 12 months. This is because sleeping on the stomach increases the risk of sudden infant death syndrome (SIDS) and suffocation.
However, once a baby can roll both ways (from tummy to back and back to tummy), it is considered safe to leave them to sleep on their stomach if they roll onto their tummy while sleeping. This typically happens between 4 and 7 months of age, and by 6 months, most infants can roll both ways.
If your baby is not yet able to roll both ways, it is recommended to gently return them to their back if you find them on their tummy or side while sleeping. It is also important to ensure that the sleep environment is safe, with no loose bedding, pillows, or toys that could increase the risk of suffocation.
To help your baby learn to roll, provide plenty of tummy time during the day. This helps build core, neck, shoulder, and arm strength, as well as motor skills, and can also help prevent flat spots on their head from sleeping on their back.
In summary, while it is generally advised that babies sleep on their backs for the first year, it is considered safe for babies to sleep on their stomachs once they can roll both ways.
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The risk of SIDS is reduced by 50% when parents share a room with their baby
It is generally recommended that babies sleep on their backs for at least the first 12 months of their lives. This is because sleeping on their stomach increases the risk of Sudden Infant Death Syndrome (SIDS). In 2020, approximately 1,389 babies died of SIDS in the United States alone.
Stomach sleeping can increase the risk of SIDS because it causes rebreathing. This is when a baby inhales exhaled air, which is lower in oxygen and higher in carbon dioxide, leading to insufficient oxygen in their bloodstream.
To reduce the risk of SIDS, it is recommended that parents share a room with their baby for at least the first six months. This can decrease the risk of SIDS by up to 50%. The baby should sleep in their own crib, bassinet, or Moses basket, and bed-sharing is not recommended.
Additionally, breastfeeding for at least six months is associated with a reduced risk of SIDS. Immunizations and prenatal care, including proper nutrition and no smoking, drug use, or alcohol consumption by the mother, can also help lower the risk.
Once a baby can roll both ways (from tummy to back and back to tummy), it is generally considered safe to leave them to sleep on their stomach if they roll onto their tummy during sleep. However, it is still recommended to place them on their back for every nap and bedtime until they are one year old.
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Swaddling should be stopped once babies can roll over
Swaddling is a great way to help calm your baby and improve their sleep. However, it is important to stop swaddling once your baby starts trying to roll over, even if this occurs as early as 2 months of age. This is because swaddled babies who roll onto their tummies may not be able to push themselves up with their hands to breathe.
If your baby is showing signs of rolling, it is time to stop swaddling. You can transition your baby to a sleep sack or a wearable blanket that doesn't restrict their arms and chest. Sleep sacks allow babies to move around a little and build strength, which is beneficial for their growth. They can also help prepare your baby to sleep with a blanket when they are older.
If your baby is still young and not showing signs of rolling, you can continue swaddling. In fact, swaddling can help babies sleep safely on their backs. However, it is important to ensure that you are using the correct swaddling technique and that the swaddle is not too tight. You should be able to fit three fingers between your baby's chest and the swaddle.
Additionally, it is important to be mindful of the risks associated with swaddling. For example, swaddling can increase the risk of Sudden Infant Death Syndrome (SIDS) if not done properly. It is also important to stop swaddling if your baby is being watched by someone else or if they are moving around a lot, as this can increase the risk of SIDS.
In summary, swaddling can be a great way to improve your baby's sleep, but it is important to stop once your baby starts to roll over. By transitioning to sleep sacks or wearable blankets, you can continue to provide a safe and comfortable sleeping environment for your baby as they grow and develop.
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Frequently asked questions
No, it is not recommended to let a baby sleep on their stomach before they turn one. Sleeping on the stomach increases the risk of sudden infant death syndrome (SIDS) as it may cause rebreathing, which leads to high carbon dioxide levels and low oxygen levels in the blood.
If your baby is able to roll both ways confidently, it is generally considered safe to leave them to sleep on their stomach. However, if they are still learning to roll, it is recommended to gently place them back on their back.
Tummy time can help strengthen your baby's core, neck, shoulder, and arm muscles, which are necessary for rolling. It is recommended that babies get 15-30 minutes of supervised tummy time per day from 2 months onwards.
While it is not recommended for babies under one to sleep on their stomach, older babies who can roll both ways may benefit from improved neck and head strength and motor skills.
If your baby does not enjoy tummy time, you can try placing them tummy-to-tummy across your lap or using a sleep sack that allows for arm movement. Swaddling can also provide a sense of security and help prevent the startle reflex from waking your baby, but it should be stopped once they start showing signs of rolling.











































