Establishing good sleep habits for your baby early on sets them up for better sleep throughout childhood Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference and contributes to their cognitive and physical development Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference . To enjoy restful sleep, babies need a safe and comfortable sleep environment. When setting up the nursery, many parents wonder what is the ideal baby room temperature. In general, room temperatures Trusted Source National Institutes of Health (NIH) The NIH, a part of the U.S. Department of Health and Human Services, is the nation’s medical research agency — making important discoveries that improve health and save lives. See Full Reference that are comfortable for adults are also appropriate for babies, but there are other important factors to consider when building a safe sleep environment. We discuss the optimal room temperature for a sleeping baby and other tips for improving infant sleep.

Why Is Room Temperature Important for Sleeping Babies?

A comfortable bedroom temperature helps promote better sleep Trusted Source National Center for Biotechnology Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference . A bedroom that is too hot or too cold may affect sleep quality and lead to nighttime awakenings.

Whether from a warm bedroom temperature or too many layers of pajamas, overheating Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference can also increase a baby’s risk of sudden infant death syndrome (SIDS). It takes time for babies to develop their sleep cycles and be able to self-regulate their temperature Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference . They also sweat less Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference , which helps adults cool down.

How to Keep the Right Room Temperature for Your Baby

There are several ways you can help your baby’s bedroom stay at a consistently cool, but not cold, temperature:

  • Stay Close: Check on your baby frequently during naps, and keep their crib in your room Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference until they reach 12 months old so you can better monitor your baby’s temperature.
  • Set the Thermostat Cautiously: Bedroom heating Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference has been implicated as a risk factor for SIDS. Consider using a separate thermostat for the bedroom or purchasing an indoor thermometer so you can better control the bedroom temperature.
  • Avoid Direct Heat and Cold Sources: Especially for very young babies, place the crib away from windows Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference , radiators, or other items that may influence the ambient temperature around their crib.
  • Keep Cool in the Summer Months: When it is warm outside, take extra care to keep the room temperature cool and use a fan or air conditioning if needed, keeping the fan angle away from your baby.
  • Consider the Infant’s Developmental Stage: Preterm babies take a bit more time to regulate their body temperature Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference , so you may keep the temperature slightly warmer while watching them carefully for signs of overheating.

A number of factors can affect room temperature Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference , from the type of insulation to the room’s location within the house. For example, bedrooms on a higher floor tend to have warmer temperatures. Be mindful of how the temperature might change within the house, and consider choosing cooler rooms for the family to sleep in during the summer months.

Signs Your Baby Is Too Hot or Too Cold

Sweating and feeling hot to the touch can be signs of overheating. If your baby gets too cold, their skin may feel cool to the touch, or they may shiver. Pale skin, breathing difficulties, limpness, vomiting, feeding difficulties, irritability, and fatigue can all be signs of hypothermia.

To check your baby’s temperature, touch your baby’s chest or abdomen, as these areas can give you a more accurate reading. If the room temperature is at a comfortable temperature but your baby appears too hot or too cold, contact your pediatrician.

Tips for Keeping Your Baby Safe and Comfortable During Sleep

When your baby is safe and comfortable, the whole family sleeps better. Here are a few more ways you can keep your baby safe during sleep.

Share A Room, Not A Bed

Until they reach their first birthday, it is safest for a baby to sleep in their own crib to reduce the risk of suffocation.

Put Your Baby on Their Back to Sleep

Place your baby on their back every time they go to sleep, up until they are 1 year old. This includes during naps.

Keep Extra Items Out of the Crib

Use a safety-approved crib that contains only a firm mattress and a snug fitted sheet. Nothing else should be in the crib, including stuffed animals, pillows, blankets, or other sheets.

Dress Your Baby in Temperature-Appropriate, Well-Fitted Clothing

Choose sleepwear for your baby that is appropriate for the temperature. Babies may benefit from one extra layer than an adult would need, but avoid piling on the layers or covering the face and head, as this area is important for heat regulation. In cold temperatures, a wearable blanket can keep them comfortably warm and is considered safer than a blanket.

Safely Swaddle

If swaddling your baby, place them on their back and use a light fabric. Once your baby starts learning to roll over, stop swaddling them as it can be dangerous if they roll onto their stomach while swaddled.

Follow a Bedtime Routine

Help your baby prepare for sleep with a calming bedtime routine Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference involving the same set of restful activities each night, such as reading, singing a lullaby, or cuddling.

Frequently Asked Questions About Room Temperature and Babies

For those with lingering questions, we address further topics regarding the best baby room temperature for sleep.

What Is the Ideal Temperature for a Sleeping Baby?

Some studies have found that a room temperature between 68 and 72 degrees Fahrenheit Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference may be comfortable for babies. Other recommendations range between 61 and 68 degrees Fahrenheit . However, the American Academy of Pediatrics (AAP) refrains from providing a specific temperature range for the baby’s bedroom. Instead, the AAP recommends dressing the baby in clothing that is appropriate for ambient temperatures.

The optimal room temperature for a sleeping baby might depend on the typical climate in your region. For example, babies who are accustomed to warmer climates might be able to handle a slightly warmer room temperature. Experts note that strong air conditioning in the summer or excessive heating in the winter can also be dangerous for babies.

What Room Temperature Is Too Hot for a Baby?

A baby room temperature above 72 degrees Fahrenheit, or 22 degrees Celsius, may be too warm. An older study from California found that using a fan when temperatures rose above 70 degrees was associated with a lower risk of SIDS Trusted Source National Library of Medicine, Biotech Information The National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information. See Full Reference .

Along with the room temperature, it is just as important to ensure that the baby is appropriately dressed in clothing that helps maintain a comfortable body temperature. If their chest feels warm to the touch, lower the temperature or remove layers of clothing to help them cool down.

Do Babies Sleep Better in a Cold Room?

Babies tend to sleep better in a comfortably cool room. Because babies have a greater proportion of exposed surface area for their weight, it is easier for them to lose body heat. This is why the American Academy of Pediatrics recommends giving them one extra layer compared to what an adult would feel comfortable wearing.

How Do You Know If Your Baby Is Too Cold?

An overly cold baby may shiver or feel cool to the touch. If you notice signs that your baby is too cool, increase the room temperature or add an extra layer of clothing.

Seek immediate medical attention if these signs are accompanied by lethargy, pale skin, breathing difficulties, limp muscles, vomiting, unexplained irritability, or feeding problems.

When to Talk to Your Pediatrician

Keep an eye out for signs that your baby is too cold or too hot, and contact your pediatrician if their skin stays cool or warm to the touch despite changing the temperature. This is especially important if they have other symptoms that suggest they may be sick, like a fever, vomiting, or diarrhea Trusted Source Medline Plus MedlinePlus is an online health information resource for patients and their families and friends. See Full Reference . Avoid over-bundling your baby if they have a fever or chills.

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