How to Keep Baby's Room Cool in Summer: The Complete Guide

Keeping your baby comfortable during the summer months is crucial for their health and well-being. Babies are more susceptible to overheating, which can lead to discomfort, disturbed sleep, and serious health risks such as heat exhaustion or heatstroke. This comprehensive guide provides detailed strategies to keep your baby’s room cool and ensure a safe and pleasant environment during the hot summer months.

1. Optimise Ventilation

Ceiling fans and oscillating fans can improve air circulation in your baby's room. Ensure the fan is not blowing directly on the baby but creating a gentle breeze throughout the room. Position fans near windows to draw in cooler evening air and expel warm air.

Create a cross-ventilation effect by opening windows on opposite sides of the room to allow fresh air to flow through. This method is particularly effective during cooler parts of the day, such as early morning or late evening.

Consider installing window fans, which can be set to either draw cool air in or push hot air out, depending on the time of day. These fans are particularly effective in enhancing natural ventilation.

2. Use Air Conditioning Efficiently

If you have an air conditioning unit, it is the best way to cool baby’s room as you just need to set it to maintain a room temperature between 68°F and 72°F (20°C to 22°C). This range is generally comfortable for babies and reduces the risk of overheating.

Ensure your air conditioning unit is well-maintained and clean. Dirty filters and coils can reduce efficiency and circulate allergens, which can affect your baby’s health.

If central air conditioning isn’t available, consider a portable air conditioner. These units can be moved from room to room and are effective in cooling specific areas. Ensure that the exhaust hose is properly vented to the outside to prevent hot air from re-entering the room.

3. Block Out Heat

Install blackout curtains or shades on windows to block out direct sunlight, which can significantly increase room temperature. These curtains are designed to reflect heat and light, keeping the room cooler.

Apply reflective or tinted film to windows. This can reduce the amount of heat entering the room by reflecting sunlight away. It’s a cost-effective solution that doesn’t obstruct the view or natural light.

Consider using insulated curtains or thermal blinds. These window treatments have a layer of insulation that helps keep the room cool in summer and warm in winter.

4. Optimise Bedding and Sleepwear

Dress your baby in lightweight, breathable fabrics such as cotton or muslin. These materials wick away moisture and allow for better air circulation, keeping your baby cool.

For particularly hot nights, a diaper and a lightweight onesie or a cotton sleep sack might be sufficient. Avoid overdressing your baby, as this can increase the risk of overheating.

Use a mattress with good ventilation properties and opt for breathable, moisture-wicking crib sheets. Bamboo or cotton sheets are excellent choices for keeping your baby cool.

5. Reduce Humidity

High humidity can make the room feel warmer and more uncomfortable. Use a dehumidifier to reduce moisture levels in the air, which can help the room feel cooler and more comfortable for your baby.

Ventilate the room during times of low humidity, typically in the early morning or late evening. This helps remove moisture-laden air and replace it with cooler, drier air.

Certain houseplants, such as peace lilies and Boston ferns, can help reduce humidity levels by absorbing moisture from the air. They also improve air quality, creating a healthier environment for your baby.

6. Use Cool Accessories

Place cooling gel pads or cooling mats under the crib sheet. These pads absorb and dissipate heat, helping to regulate your baby’s body temperature. Also, use breathable crib sheets in summer.

Drape cool, damp washcloths over the crib rails or place them near the fan. As the air passes over the damp cloth, it cools down, providing a gentle cooling effect in the room.

Fill a sock or small cloth bag with ice packs or frozen peas and place it near, but not directly in, your baby’s sleeping area. This can help cool the surrounding air without posing a direct risk to your baby.

7. Strategic Room Placement

If possible, choose a room for your baby that is naturally cooler. Rooms on the lower levels of the house, or those facing north or east, tend to be cooler than south or west-facing rooms.

Keep your baby’s crib away from direct sunlight and heat sources like lamps or electronics. Position the crib on an interior wall, which is generally cooler than exterior walls. Also, use crib fans for babies as they are safe in nature.

During the day, close off any unused rooms to prevent cool air from dispersing throughout the house. This helps maintain a lower temperature in the rooms that are in use, including your baby’s room.

8. Monitor and Adjust

Place a room thermometer in your baby’s room to monitor the temperature. Digital thermometers with humidity sensors provide real-time data, allowing you to make necessary adjustments promptly.

Many modern baby monitors come with built-in temperature sensors. These devices can alert you if the room temperature goes outside the recommended range, ensuring you can act quickly to keep your baby comfortable.

Regularly check on your baby to ensure they are not too hot. Feel their neck or back to check for sweat. A slightly cool or comfortably warm baby is a sign that the room temperature is appropriate.


Maintaining a cool and comfortable room for your baby during the summer is essential for their health and well-being. By optimising ventilation, using air conditioning efficiently, blocking out heat, choosing appropriate bedding, reducing humidity, and using cool accessories such as baby crib fans and breathable crib sheets, you can create a safe and pleasant environment for your baby. 

Additionally, strategic room placement and regular monitoring help ensure your baby remains comfortable throughout the hottest months. By following these comprehensive strategies, you can keep your baby’s room cool and enjoy a worry-free summer.

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