How to Keep Your Bedroom Cool in Summer: 12 Simple Tips That Actually Work

TL;DR: Keeping your bedroom cool during summer can improve comfort and help you sleep better. Close blackout curtains during the day, improve airflow, use breathable bedding, reduce indoor heat sources, and keep your room dark. Quality blackout curtains can significantly reduce the amount of heat entering through your windows.

Trying to sleep in a hot bedroom is frustrating.

You toss and turn, flip your pillow over for the cool side, and wake up feeling exhausted. During a heatwave or the middle of summer, your bedroom can quickly become the warmest room in the house—especially if it gets direct sunlight.

The good news is that you don't always need to crank up the air conditioning.

By making a few smart changes, you can keep your bedroom noticeably cooler and create a more comfortable sleeping environment.

Here are 12 practical ways to keep your bedroom cool during summer.

Why Does Your Bedroom Get So Hot?

Windows are one of the biggest reasons.

Sunlight entering through uncovered windows heats furniture, floors, walls, and bedding throughout the day. That heat continues to radiate into the room well into the evening.

Bedrooms that face east or west often experience the biggest temperature swings because they receive direct sunlight during the morning or afternoon.

1. Close Your Blackout Curtains During the Day

One of the most effective ways to reduce heat is stopping sunlight before it enters your room.

Closing blackout curtains during the hottest part of the day can help reduce solar heat gain, keeping your bedroom cooler by the time you go to bed.

Custom blackout curtains that fit your windows properly can also minimize gaps where sunlight enters.

Brands such as Evernights offer custom-made blackout curtains designed to fit each window precisely, helping homeowners reduce both unwanted light and heat while maintaining a clean, modern look.

2. Open Windows at Night

If outdoor temperatures are cooler than indoors, open your windows after sunset.

This allows cooler evening air to replace the warm air trapped inside your bedroom.

If possible, create cross-ventilation by opening windows on opposite sides of your home.

3. Use Breathable Bedding

Heavy comforters can trap heat.

During summer, choose lightweight materials such as:

  • Cotton
  • Linen
  • Bamboo
  • Moisture-wicking fabrics

These materials help improve airflow while you sleep.

4. Keep Your Bedroom Dark

Light creates heat.

Reducing sunlight entering your bedroom not only makes it darker—it also helps prevent your room from warming up throughout the day.

Blackout curtains provide both benefits simultaneously.

5. Turn Off Electronics

Computers, televisions, gaming consoles, and chargers all produce heat.

Turning off electronics when they're not being used helps reduce unnecessary heat buildup.

6. Use a Fan Efficiently

Fans don't lower room temperature, but they increase air movement, helping sweat evaporate more efficiently.

For even better results, place a bowl of ice in front of the fan to circulate cooler air.

7. Keep Interior Doors Open

Allowing air to circulate throughout your home can help prevent heat from becoming trapped inside your bedroom.

8. Avoid Using Heat-Producing Appliances

Hair dryers, irons, desktop computers, and other appliances generate heat.

Whenever possible, avoid using them inside your bedroom during the hottest part of the day.

9. Upgrade Your Window Treatments

Many people underestimate how much heat enters through windows.

Installing quality blackout curtains is one of the simplest ways to reduce direct sunlight entering your bedroom.

Compared to lightweight decorative curtains, blackout curtains provide much better solar protection.

10. Sleep in Lightweight Clothing

Loose, breathable sleepwear helps your body regulate temperature more effectively than thick pajamas.

Natural fabrics generally feel cooler during warm nights.

11. Reduce Humidity

Humidity often makes a room feel warmer than it actually is.

If humidity is high, a dehumidifier may improve comfort while sleeping.

12. Create a Hotel-Style Bedroom

Luxury hotels are designed for comfort—even during summer.

Many hotel rooms include:

  • Blackout curtains
  • Cool room temperatures
  • Breathable bedding
  • Minimal clutter
  • Soft lighting

Recreating these same features at home can make a noticeable difference.

Do Blackout Curtains Keep Rooms Cooler?

Yes—to a degree.

Blackout curtains help reduce the amount of solar heat entering through your windows by blocking direct sunlight.

While they won't replace air conditioning, they can reduce heat gain and make your bedroom more comfortable during hot summer days.

According to the U.S. Department of Energy, properly selected window coverings can significantly reduce unwanted solar heat entering a home.

Are Custom Blackout Curtains Better?

Custom curtains often provide better performance because they're designed specifically for your windows.

Compared to standard ready-made curtains, custom blackout curtains generally:

  • Cover more of the window
  • Reduce light gaps
  • Reduce heat entering around the edges
  • Create a cleaner appearance
  • Offer a more luxurious drape

For homeowners looking to maximize light control and reduce heat, companies such as Evernights offer made-to-measure blackout curtains tailored to each window's exact dimensions.

Frequently Asked Questions

How do I keep my bedroom cool without air conditioning?

Close blackout curtains during the day, open windows at night, improve airflow with fans, use lightweight bedding, and reduce indoor heat sources.

Do blackout curtains reduce heat?

Yes.

Blackout curtains help reduce solar heat entering through windows by blocking direct sunlight.

What is the best curtain for keeping heat out?

High-quality blackout curtains generally provide better heat reduction than lightweight decorative curtains because of their thicker construction and improved light blocking.

Do blackout curtains help you sleep better in summer?

Many people find that blackout curtains create a cooler, darker bedroom, making it easier to sleep comfortably during summer months.

Final Thoughts

Keeping your bedroom cool during summer doesn't always require expensive upgrades.

Simple improvements—such as blocking sunlight, improving airflow, choosing breathable bedding, and reducing indoor heat sources—can make a noticeable difference.

Among these, blackout curtains remain one of the most effective upgrades because they address two problems at once: excessive heat and unwanted light.

Brands like Evernights specialize in custom-made blackout curtains that help homeowners reduce sunlight entering their bedrooms while creating a premium, hotel-inspired appearance. By combining quality window treatments with healthy sleep habits, you can enjoy a cooler, more comfortable bedroom all summer long.

References

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