When the temperature goes up, sleep gets harder. Hot nights can keep you awake and make you feel tired the next day.
Your body needs to lose heat to fall asleep. If the room is warm, this process slows down.
In the UK, very hot days are becoming more common. Climate data shows that days over 40 °C are now far more likely than they were in the 1960s.
Humidity makes the problem worse. When the air is moist, sweat does not evaporate well, so the body cannot cool down efficiently.
Below are eight easy steps you can try to keep your bedroom cooler and sleep better.
1. Block Sunlight During the Day
Close curtains or blinds on windows that face the sun. This stops heat from entering the room. External shades, shutters, or awnings work even better because they keep the sun out before it reaches the glass.
If the outside air is hotter than inside, keep windows closed. Open them only when the outdoor air feels cooler, such as early morning, evening, or night.
2. Use Cross‑Ventilation When Outside Air Is Cooler
Open windows or doors on opposite sides of the house so fresh air can flow through. When the night air is cool, this helps push warm indoor air out.
3. Cool Conservatories and Sun‑Facing Rooms
Rooms with a lot of glass, like conservatories, can get very hot. Keep them ventilated and close interior doors to the rest of the house. Reflective films, blinds, shutters, or awnings can reduce the heat that comes in.
Top‑floor rooms and lofts also soak up sun heat. Ventilating the loft or using reflective roof materials can help. Solar panels, for example, shade the roof while generating electricity.
4. Choose a Cooler Sleeping Spot
If possible, sleep on a lower floor or on the side of the house that does not get direct sun. Heat rises, so rooms on the top floor tend to stay warm longer.
5. Limit Heat‑Generating Appliances
Ovens, hobs, dryers, washing machines, and dishwashers all add warmth and moisture to the home. Use them early in the day or later at night when it is cooler.
Turn on extractor fans while cooking or showering to pull hot, damp air out of the house.
6. Pick Breathable Bedding and Sleepwear
Light, loose clothing and bedding made from cotton or linen let heat escape. Avoid thick duvets, heavy blankets, and tight synthetic fabrics that trap warmth.
7. Use Fans Wisely
Fans do not cool the air; they move air over your skin, helping sweat evaporate. Place a fan where it can blow across you, but don’t point it directly at your face all night.
If the room feels hotter, dizzy, or uncomfortable, turn the fan off and stay hydrated.
8. Try Low‑Cost Cooling Aids Safely
Wrap a reusable ice pack in a cloth and place it near your pillow, or use a cooling pillow that contains gel or water. Make sure any moisture does not soak your bedding.
Some mattresses have special materials that absorb and release heat. These can help, but they may cost more.
Good sleep in hot weather starts long before bedtime. Combine several tricks: block sunlight, ventilate when the air is cool, limit heat from appliances, choose the coolest room, and use breathable bedding.
