
Knowing how to dress a newborn for sleep is essential for their safety and comfort. Overheating is a risk factor for sudden infant death syndrome (SIDS), so it's crucial to ensure your baby doesn't get too warm. The recommended room temperature for a baby's sleep is 68–72 °F (20–22 °C), but this can vary depending on the climate and the temperature of your home. It's important to dress your baby in layers that can be easily adjusted according to the temperature and season. A good rule of thumb is to dress your baby in one more layer than you would need to feel comfortable.
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What You'll Learn
- Room temperature: 68-72°F is recommended
- Dressing in layers: start with a onesie, add or remove layers as needed
- Swaddling: provides security but can be risky once a baby starts rolling over
- Keep their head uncovered: hats and bows are unsafe for sleep
- Monitor their temperature: gently touch their chest or back

Room temperature: 68-72°F is recommended
Keeping your newborn baby comfortable while they sleep is a top priority. Not only does it ensure your baby's safety, but it also promotes their overall growth and development.
The recommended room temperature for a newborn baby to sleep in is between 68°F and 72°F (20-22°C). This range helps prevent your baby from getting too cold, which can cause them to wake up, and from getting too warm, which can lead to overheating. Overheating is a risk factor for Sudden Infant Death Syndrome (SIDS).
To maintain this ideal room temperature, it is important to monitor your baby's sleeping environment and make adjustments if it becomes too hot or too cold. You can use a wall thermometer to accurately gauge the temperature near your baby's crib or bassinet.
Additionally, it is crucial to dress your newborn baby appropriately for the temperature of their sleeping environment. As a general rule of thumb, you can dress your baby in one more layer than you would need to feel comfortable yourself. For example, a short or long-sleeved onesie with a sleep sack or swaddle is often recommended for newborns. If your baby feels chilly, you can add extra layers such as long sleeves, footies, or a wearable blanket. On the other hand, if they feel warm or sweaty, you may want to remove layers or cool the room temperature.
Remember, in the first few days after birth, babies are learning to regulate their body temperature. By the time they come home or within the first week, they should be able to adjust to the temperature of their sleeping environment.
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Dressing in layers: start with a onesie, add or remove layers as needed
When it comes to putting your newborn to sleep, it's essential to keep them comfortable and safe. Here are some tips for dressing them in layers:
Start with a onesie as the base layer. Onesies are versatile and can be short or long-sleeved, depending on the temperature. They provide a comfortable foundation for your baby's sleepwear.
Add layers for warmth. If the room temperature is cooler, you can add extra layers such as long sleeves, footies, or leggings over the onesie. The key is to ensure your baby is cosy without overheating. Remember, babies regulate their body temperature through their faces and heads, so their cheeks being flushed or sweaty indicate they are too warm.
Remove layers if needed. If your baby's room is on the warmer side, you may only need the onesie, or you can opt for a sleeveless and legless romper. It's important to avoid overdressing your baby, as overheating increases the risk of Sudden Infant Death Syndrome (SIDS).
Adjust layers as required. Keep an eye on your baby's temperature and adjust their layers accordingly. You can add or remove layers depending on the season and the temperature of their room. Remember, babies' hands and feet tend to feel cooler, but this doesn't always indicate their overall warmth. Focus on their core temperature by gently touching their chest, back, or tummy.
Follow safe sleep practices. When dressing your newborn for sleep, avoid loose layers, hats, bows, or anything that could cover their face and head. Ensure their sleepwear fits well and is age-appropriate. Swaddling can provide a sense of security for newborns, but it should be phased out as they grow. Always place your baby on their back on a firm, flat, and clean mattress.
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Swaddling: provides security but can be risky once a baby starts rolling over
Swaddling is a technique that involves wrapping a baby snugly in a blanket to restrict their movement. It is often used to soothe newborns and young infants by providing them with a sense of security and comfort, mimicking the feeling of being in the womb. While swaddling can be beneficial for calming fussy babies and improving their sleep, it is crucial to follow safe practices and discontinue this practice at the appropriate stage of their development.
One of the key considerations with swaddling is ensuring that your baby's nose and mouth remain unobstructed during the process. It is important to follow proper swaddling techniques to avoid any potential hazards. Additionally, it is recommended to use a swaddle that allows for hip movement and does not constrict the legs, as advised by orthopedic specialists.
While swaddling can be beneficial for younger babies, it is important to discontinue the practice once your baby starts showing signs of rolling over or approaching this developmental milestone. This is usually around two months of age, but some babies may reach this stage earlier. Continuing to swaddle a baby once they can roll over can increase the risk of sudden infant death syndrome (SIDS) and restrict their necessary free movement.
The transition away from swaddling can be gradual. You can start by trying out a sleep sack, which provides more freedom of movement while still offering some of the snugness of swaddling. Sleep sacks are considered safer than swaddles, as they do not ride up and pose a suffocation risk if the baby wiggles around. Additionally, you can opt for footie pajamas or a long-sleeve onesie with a sleep sack, adjusting the layers based on the temperature.
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Keep their head uncovered: hats and bows are unsafe for sleep
Keeping your newborn's head uncovered while they sleep is crucial for their safety and comfort. Here are several reasons why hats, bows, and other head coverings are not recommended for newborns during sleep:
Temperature Regulation
Newborns are still learning to regulate their body temperature during their first few days of life. Their heads help in this process, as they release heat to cool down. Covering their heads with hats or bows can interfere with this natural cooling mechanism, leading to overheating. Overheating has been linked to serious health risks, including Sudden Infant Death Syndrome (SIDS) and fatal sleep accidents. Therefore, it is generally recommended to avoid hats and opt for other ways to keep your newborn warm, such as swaddling or using a sleep sack.
Strangulation and Suffocation Risk
Hats, bows, and other loose items in the crib pose a potential strangulation or suffocation hazard. As babies move around in their sleep, headwear can slip and cover their faces, obstructing their breathing. This risk is especially pertinent when hats or bows are not secured properly. To ensure your newborn can breathe freely during sleep, it is best to keep their head and face uncovered.
Monitoring Temperature
Assessing your newborn's temperature is an important part of ensuring their comfort and safety. Checking the skin on their tummy or back is a more accurate way to gauge their body temperature than feeling their hands or feet. If they have flushed cheeks, they are likely too warm, and you can adjust by removing layers or lowering the room temperature. It is recommended to maintain a comfortable temperature in the room, similar to what an adult would find comfortable while wearing one extra layer.
Safe Sleep Environment
Creating a safe sleep environment for your newborn is paramount. In addition to keeping their head uncovered, it is essential to avoid loose items in the crib, such as blankets, weighted sleep sacks, or anything with strings or straps. These items can increase the risk of suffocation or entanglement. Instead, opt for a well-secured swaddle or a safe infant sleeping bag that is appropriately sized and allows for free arm movement.
Remember, keeping your newborn's head uncovered during sleep is a crucial safety measure. While hats and bows may be adorable, they are best saved for daytime use. Prioritize your newborn's safety and comfort by following these recommendations for a peaceful slumber.
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Monitor their temperature: gently touch their chest or back
Keeping your newborn comfortable while they sleep is a priority. It is important to ensure they are dressed appropriately for the temperature of their room. A good rule of thumb is to dress your baby in one more layer of clothing than you would wear yourself. For example, if you are wearing a t-shirt and jumper, dress your baby in a vest, sleepsuit and cardigan or jumper.
To monitor their temperature, gently touch their chest or back. If their core body feels cool to the touch, they may be too cold. In this case, consider adding a layer. If their chest or back feels warm, they may be too hot, in which case you should remove some layers or cool the room.
Babies can overheat quickly due to too much clothing or bedding, or a room that is too hot. If your baby is sweating, or their tummy or back feels warm to the touch, remove some clothing or bedding. It is recommended to keep the room temperature between 68°F and 72°F (20°C-22°C) for sleeping. However, this may vary depending on the season and the temperature of your home.
It is important to remember that babies regulate their body temperature through their face and head, so never put a hat on your baby when sleeping, even if it seems cold. Similarly, avoid covering their head with blankets or any other objects to prevent suffocation or strangulation.
You can adjust the layers of clothing depending on the season. During the colder months, dress your baby in a full-length romper or a bodysuit with leggings. In hot weather, a single layer of lightweight, breathable clothing is usually enough.
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Frequently asked questions
It is recommended that newborns are dressed in one more layer of clothing than an adult would wear in the same environment. For example, if you're in a t-shirt and jumper, dress your newborn in a vest, sleepsuit, and cardigan or jumper.
If your newborn is dressed too warmly, they may be sweaty or have flushed cheeks. If this is the case, consider reducing the layers under their swaddle or sleep sack. If your newborn is too cold, their core (chest, neck, back, and tummy) would feel cool to the touch.
A room temperature of 16 to 20°C is comfortable and safe for sleeping newborns.
Here are some safe sleep guidelines for newborns:
- Never put your newborn to sleep wearing a hat, beanie, or bonnet.
- Choose clothing that is the correct size for your newborn's age, height, and weight.
- Never leave any loose layers, pillows, blankets, or toys in their sleep space.
- Always put your newborn to sleep on their back with their face and head uncovered.









































