5 Signs Your Baby is Overheating in the Night and What You Can Do

5 Signs Your Baby is Overheating in the Night and What You Can Do

As parents, ensuring the comfort and safety of your little ones is a top priority, especially when it comes to their sleep. Because they are unable to regulate their body temperatures like adults can, it’s crucial to have proper sleepwear for babies to prevent overheating.

In this article, we'll explore five signs that indicate your baby might be overheating during the night and provide helpful tips to ensure a comfortable and safe sleeping environment. So, grab a cup of tea, and let's dive in!

Sweat and Damp Hair

One of the first signs that your baby might be overheating during sleep is excessive sweating, particularly on the head and neck area. If you notice damp hair or a sweaty forehead, it's a good indication that your little one is too warm.

Their Torso/Trunk Feels Hot

Another telltale sign of overheating in babies is a hot trunk or torso. Gently place your hand on your baby's chest or back to assess their body temperature. If it feels unusually hot to the touch, it's a sign that they might be too warm. 

In such cases, opt for lightweight sleepwear for babies that allow for better ventilation and heat dissipation.

Red or Flushed Skin

When babies become too hot, their delicate skin may become red or flushed. Check your baby's cheeks, chest, or neck for any signs of flushing. If you notice an abnormal redness, it's a clear indication that they might be overheating. Adjust their sleep environment accordingly by ensuring proper airflow and selecting appropriate sleepwear made from breathable fabrics.

Rapid Heartbeat

A rapid heartbeat is another indicator that your baby might be overheating during the night. When babies feel excessively warm, their heart rates tend to increase. 

Place your hand gently on their chest or neck and check for an unusually fast heartbeat. If you notice this, take steps to cool down your baby by removing unnecessary layers or adjusting the room temperature.


Overheating can make babies feel lethargic and irritable. If you find your little one appearing unusually drowsy, sluggish, or less responsive, it could be due to overheating. It's essential to create a comfortable sleep environment to help them get the rest they need.

What to Do

Now that we have explored the signs of overheating, let's discuss some practical steps you can take to ensure your baby's comfort and safety during sleep.

Keep a Room Thermometer

Place a room thermometer near your baby's bed to monitor the temperature. The ideal range for a baby's room is typically between 68-72 degrees Fahrenheit (20-22 degrees Celsius). Regularly check the thermometer to ensure the room remains within this range.

Dress Your Baby in Light Layers

Opt for light layers when dressing your baby for sleep. This allows you to easily adjust their clothing if they become too warm. Choose sleepwear for babies made from lightweight, breathable fabrics like cotton. 

Maintain Distance from Heating Vents

Ensure your baby's crib or bassinet is positioned away from heating vents or radiators. Direct heat sources can significantly raise the temperature around your little one, increasing the risk of overheating. 

By keeping their sleep area away from these sources, you can create a more comfortable and balanced sleep environment.

Check the TOG Rating

When selecting sleepwear for babies, it's essential to consider the TOG (Thermal Overall Grade) rating. The TOG rating indicates the warmth level of a garment. For warmer months or rooms with higher temperatures, opt for sleepwear with a lower TOG rating to promote better airflow and heat dissipation.

On the other hand, for cooler nights, choose sleepwear for babies with a slightly higher TOG rating to keep your baby cozy without causing overheating.

Avoid Loose Blankets

To ensure a safe sleep environment, avoid using loose blankets in your baby's crib. Loose bedding can pose suffocation hazards and increase the risk of overheating.

Instead, opt for a sleepsuit or a wearable blanket that is specifically designed for infants. These provide warmth and comfort while ensuring proper airflow and reducing the risk of overheating.

Find the Right Sleepwear With Baby Merlin

Whether you need something for warm summer nights or sleepwear that's a bit cozier, Baby Merlin has something you'll love. Our collections feature a wide range of cotton and microfleece sleepsuits and sacks for all of your baby's development stages.

With double zippers for easy changes and fabric that's designed to keep your baby comfortable, Baby Merlin products are trusted by thousands of parents nationwide. Find your perfect sleepwear and keep your baby comfortable all night long.

Contact us with any questions and our customer service will get back to you promptly.

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