
There are many conflicting opinions on whether or not a newborn baby needs to wear a hat to sleep. Some sources say that it is not safe for babies to wear hats indoors as they increase the risk of overheating, and that babies cool themselves by releasing heat from their heads and faces. Other sources suggest that newborn babies need to wear hats in the first few days of their life as they are not very good at regulating their body temperature. However, the American Academy of Pediatrics (AAP) recommends that infants should not wear hats indoors except in the first few hours of life or in the NICU.
| Characteristics | Values |
|---|---|
| Should newborns wear hats to sleep? | No, according to the American Academy of Pediatrics. |
| Why? | Overheating can increase their risk of sudden infant death syndrome (SIDS). Hats can also slip and cover babies' faces, creating a suffocation hazard. |
| When should newborns wear hats? | In the first few hours of life or in the NICU, or outdoors in cold weather. |
| How should you dress your baby for sleep? | Dress your baby in a similar number of layers to you. |
| How do you know if your baby is too hot or cold? | Feel their core (chest, neck, back, and tummy). If it feels warm but not sweaty or cold, they are likely comfortable. |
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What You'll Learn
- Newborns should not wear hats to sleep due to the risk of overheating
- Overheating is linked to sudden unexpected death in infancy (SUDI)
- Hospitals may put hats on newborns to regulate their body temperature
- Newborns can struggle to regulate their body temperature
- The ideal room temperature for a baby to sleep in is between 68 and 72 degrees

Newborns should not wear hats to sleep due to the risk of overheating
The American Academy of Pediatrics (AAP) recommends that newborns do not wear hats indoors after the first few hours of life or in the NICU. In the first few hours, babies are learning to regulate their temperature, so they may wear a hat in the hospital. However, by the time they go home, hats are no longer necessary for temperature regulation indoors.
It is important to keep a baby's head uncovered while they sleep. Instead of using hats, parents can ensure their baby's comfort by dressing them in layers of fitted clothing rather than thick pyjamas. This allows parents to easily adjust their baby's clothing if they get too warm or cold.
To check if a baby is too hot, feel their skin on their tummy or back. Their hands and feet might feel cool, but this is not a good indication of their body temperature. If their core feels warm but not sweaty, they are likely comfortable.
Overheating has been linked to sudden unexpected death in infancy (SUDI), including sudden infant death syndrome (SIDS) and fatal sleep accidents. Therefore, it is crucial to keep a baby's sleeping environment safe and comfortable, maintaining a temperature that is warm but not hot, sweaty, or cold.
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Overheating is linked to sudden unexpected death in infancy (SUDI)
Overheating is a significant risk factor for sudden unexpected death in infancy (SUDI). Babies regulate their temperature predominantly through their face and head. Therefore, it is important to keep their heads uncovered during sleep. The American Academy of Pediatrics recommends that newborns should not wear hats to sleep or even indoors after the first few hours of life or in the NICU.
Babies who are born premature, unwell, or with low birth weight are at greater risk of SUDI. SUDI is more common in babies aged between 2 and 4 months, but it can also happen to younger and older babies.
To reduce the risk of SUDI, it is important to provide a safe sleeping environment for your baby. This includes a safe cot that meets the safety standards, a firm and flat mattress, and safe bedding. The baby's face and head should remain uncovered during sleep, and they should be dressed appropriately for the temperature of the room. It is recommended to keep the room temperature between 68 and 72 degrees Fahrenheit.
Additionally, breastfeeding can reduce the risk of SUDI by more than half. It is also important to keep the baby smoke-free before and after birth and provide a separate sleeping space free of loose bedding, clothing, or any other items.
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Hospitals may put hats on newborns to regulate their body temperature
However, it is important to note that hats are not recommended for newborns to wear while sleeping, as this can increase the risk of overheating and sudden infant death syndrome (SIDS). The best way to keep a baby warm at night is to dress them in light layers, such as a onesie and a swaddle or sleep sack. Additionally, hats can fall off while the baby is sleeping and potentially cover their face, increasing the risk of suffocation.
It is recommended to keep a baby's head uncovered while they sleep, as they cool down by releasing heat from their heads. Hospitals may put hats on newborns temporarily, but once the baby is discharged, hats are typically only necessary outdoors in cold weather or to protect them from the sun's rays.
It is always important to prioritise the baby's safety and comfort, and to follow the advice of trusted medical professionals.
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Newborns can struggle to regulate their body temperature
Babies can regulate their body temperature through their heads, so it is important to keep their heads uncovered while they sleep. Overheating is a risk factor for sudden infant death syndrome (SIDS). It is recommended to keep the room temperature between 68 and 72 degrees Fahrenheit, and to dress the baby in light layers for sleep. Start with a onesie and add a warm, one-piece sleeper on top. Then, swaddle the baby or place them in a wearable blanket or sleep sack.
If you are unsure if your baby is warm enough, check their tummy or back. Their skin should feel warm but not hot or sweaty. A baby's hands and feet might feel cool, but this is not a good indication of their body temperature. As a general rule, babies need one more layer of clothing than the adults in the same environment.
It is also important to note that any loose items or clothing in the crib, such as hats, mittens, hair bows, or pacifier clips, are not considered safe for sleep. It is best to keep the crib clear of all bedding, including blankets and other coverings, and to use a safe infant sleeping bag or suit if needed.
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The ideal room temperature for a baby to sleep in is between 68 and 72 degrees
Keeping your baby at the right temperature is important for their health and safety. The ideal room temperature for a baby to sleep in is between 68 and 72 degrees Fahrenheit (20 to 22 degrees Celsius). This range creates a comfortable environment for your baby to rest and helps to reduce the risk of sudden infant death syndrome (SIDS).
Babies are more sensitive to changes in room temperature because their bodies are still growing and adjusting to life outside the womb. In the first few weeks, they are learning to regulate their body temperature, so it's normal for them to need some extra layers to stay warm. As a general rule, babies need one more layer of clothing than adults. You can adjust the number of layers based on the temperature of your home and the baby's needs.
To check if your baby is too warm, feel the back of their neck or chest. If it's sweaty, then they are too hot. Other signs of overheating include flushed cheeks, rapid breathing, and clammy skin. If your baby is too cold, their hands and feet may turn slightly blue, and they will feel cold to the touch. They may also shiver.
To maintain a comfortable temperature, dress your baby in lightweight, breathable clothing. Avoid heavy sleepwear and opt for layers that can be added or removed as needed. Keep the crib free of loose blankets, sheets, and pillows, as these can pose a safety risk. Instead, use a well-fitting swaddle or a safe sleeping bag with features like fitted necks and armholes.
Additionally, avoid putting hats or other head coverings on your baby while they sleep. Babies regulate their temperature through their head and face, so covering their head increases the risk of overheating. It's also a potential suffocation hazard if the hat falls off during sleep.
By following these guidelines, you can help ensure your baby sleeps comfortably and safely within the ideal temperature range of 68 to 72 degrees Fahrenheit.
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Frequently asked questions
No, according to the American Academy of Pediatrics, newborns should not wear hats to sleep or even indoors after the first few hours of life or in the NICU. Hats can increase the risk of sudden infant death syndrome (SIDS) as babies regulate their body temperature through their heads. Additionally, hats could slip and cover the baby's face, increasing the risk of suffocation.
The ideal temperature for a baby to sleep in is between 68 and 72 degrees Fahrenheit (20 to 22 degrees Celsius). It is recommended to dress your baby for sleep based on what you are wearing. If you are wearing a t-shirt and a sheet, your baby might wear a onesie and a lightweight swaddle or sleep sack.
To check if your baby is too hot, feel their core (chest, neck, back, and tummy). If their core feels warm but not sweaty, and not cold, then they are likely comfortable. If your baby is dressed too warmly, reduce the layers under their sleepwear or opt for sleepwear with a lower TOG rating. If your baby's core feels cool to the touch, you can add a layer of clothing.











































