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Like Goldilocks and the three bears, agreeing on a comfortable room temperature is a challenge for many households. One person likes it cool, another likes it warm … but what temperature is “just right” for the baby?”

Contrary to what many people think, babies do best in a cool environment (68–72˚F). In 1992, the American Academy of Pediatrics launched the Back to Sleep campaign after studies confirmed that babies who slept on their backs had a decreased risk of Sudden Infant Death Syndrome (SIDS).

Ongoing research has identified several other risk factors in the sleep environment that are associated with SIDS. One of these is infant overheating, caused by either a room that is too warm or bundling the infant in blankets and clothes. Studies show that when a baby is too warm, he or she may not respond as readily to low oxygen signals in the brain, which increases the risk of SIDS.

Currently, parents are advised to keep the nursery between 68–72˚F to help reduce risk of SIDS. Additionally, all soft bedding under, over, and around the baby should be removed from the crib (this includes blankets and bumper pads), along with all toys and stuffed animals. Take care not to cover your baby’s face with any type of clothing or bedding as this can also increase the risk of SIDS.

How can you tell if your baby is warm enough or too warm? Feeling the skin on her chest or abdomen will give you the best idea of body temperature. Baby’s skin should feel warm and dry. Resist the temptation to use your baby’s hands or feet as a temperature gauge. In babies, cold or blue extremities are usually caused by immaturity of the circulatory system rather than lack of warmth. Conversely, if the skin on the chest or abdomen feels hot, the skin is red, or the scalp or feet are moist, they are too warm. Add or remove layers of clothing to keep your baby feeling just right.

As a general guideline, your room should be at a temperature that would be comfortable for an adult dressed in light clothing, and your baby should have on one additional layer. A hat and socks or footed onesie can reduce heat loss during cold weather. Sleep sacks are a great way to add an extra layer of warmth at night without using blankets.

Bringing a new baby home is not a reason to crank the thermostat up or down. Keeping your home at a reasonable temperature will not only be more comfortable for your baby, but it will also be safer.

Takeaways

  • Babies do best in a cool room (68–72˚F).
  • A cooler environment helps prevent SIDS.
  • Your baby's skin on the chest and stomach should feel warm and dry.

References

  1. American Academy of Pediatrics. SIDS and Other Sleep-Related Infant Deaths.
  2. Environmental Health Perspectives. Ambient Heat and Sudden Infant Death.
  3. Sleep. Ambient temperature is associated with changes in infants’ arousability from sleep.

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