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Outbyte Driver Updater FREEScan for outdated or missing drivers - takes under a minuteDriver Scan →Outbyte PC Repair FREEClear out junk files and repair common Windows errorsFree Scan →Keep sun off bedroom windows during the day, then open them only when the outdoor air is cooler than the air inside and it is safe to do so. For sleep, close curtains or blinds to block light; an eye mask can help with any remaining glow. A fan is a comfort measure, not a way to cool the room, and England guidance says to use one only when the ambient air is below 35°C.
Use a day-to-night cooling sequence
Opening windows all day is not a reliable way to cool a bedroom: when it is hotter outside, that can let more heat in. NHS guidance recommends closing windows, curtains and blinds during the day, then opening windows at night after outdoor temperatures have fallen. The England home checklist likewise says to ventilate when outside air feels cooler than indoors, provided it is safe. NHS heat advice and the England home-cooling checklist set out this timing approach.
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- Before a hot day: identify bedroom windows that receive direct sun and plan to shade them. External shading may be practical in some homes; internal curtains or blinds are another option.
- During the day: close curtains or blinds on sunlit windows, and keep windows closed while outside air is hotter than the room. Turn off unused heating, lights and electrical equipment that add heat.
- In the evening or at night: compare the indoor and outdoor conditions. If outside air is cooler, open windows if it is safe and, where possible, allow air to move through the home.
Top-floor flats, limited ventilation, a lack of shading, and large unshaded east-, west- or south-facing windows are among the overheating risk factors identified by the England checklist. Some highly insulated homes can also retain heat in summer.
Choose window coverings for the problem you need to solve
Window coverings can help keep direct sun out and make the bedroom darker, but their roles and installation needs differ. England guidance lists internal curtains and blinds as well as external shutters, roller blinds and awnings; it describes external shading as potentially very effective, but does not provide a direct comparison test or quantify how much any covering reduces room temperature.
#1 Best Overall
- READY MADE: Set includes 2 BLACKOUT CURTAINS PANELS of 42" wide x 63" length with 6 grommets top each. Quality fabric without liner feels soft and heavy.
- SERVE WELL: Curtains impede 85%-99% light and UV rays(Dark color curtains work well). Noise-reducing, better TV viewing thanks to the innovative triple weave technology.
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| Option | What it helps with | Light blocking | Installation and trade-offs |
|---|---|---|---|
| Internal curtains or blinds | Shading a window from inside; useful for renters who can use an existing covering | Can darken the room when fully closed; gaps may still let in light | May be easier to use than exterior fixtures, but the cited guidance does not compare their heat performance with external shading |
| External shutters, roller blinds or awnings | Blocking sun outside the window | Can shade the window; darkness inside depends on the design and coverage | May require permission or installation work; the England checklist says external shading can be very effective but does not quantify the effect |
| Sleep eye mask | Blocking light that reaches the eyes | Yes, while worn | No window installation; it does not shade the window or change room temperature |
A blackout curtain or blind is one option when brightness is the main issue. The cited public-health sources do not test blackout fabrics or establish that every blackout covering will keep a room cool, so treat darkness and heat reduction as separate goals.
Make the bedroom dark enough for sleep
The NHS recommends a quiet, dark, cool bedroom. Fully close curtains or blinds; if light still enters around the edges or through a gap, an eye mask is a simple alternative. If another room is cooler and available, consider sleeping there. The NHS also identifies a room that is too hot or cold as a factor that can contribute to insomnia. See NHS advice on falling asleep and its insomnia guidance.
Rank #2
- SIZE & MATERIAL:Set includes 2 panels blackout curtains（52" Wide by 84" Long). Each panel has 8 grommets.The interior diameter of hole is 1.6 inch.It's easy to hang. Curtains are made by quality faux linen.
- BLACKOUT CURTAINS: Thermal insulated blackout curtains could block 100% light out to darken your room completely.Suitable for late sleepers, shift workers, seniors, parents, students and computer operators to enhance their quality of sleep well during the day.
- TRIPE WEAVE TECHNOLOGY:We adopt tripe weave technology to make material. With the help of this technology, curtains could insulate the room from the heat and cold all the year, so that it will save energy. Also,curtains could reduce the noise to keep your room quiet. Blackout curtains could provide you a comfortable environment with privacy.
- CLASSIC HOME DECOR:Quality linen curtains could decorate your room into a vintage, gorgeous and luxurious style. It is available in 8 sizes to accommodate your bedroom, living room, den,etc.
- EASY CARE: If there are wrinkles when opening the packaging. Warm iron or steam iron and tumble dry at low temperatures if necessary. Don't use sharp things scratching curtains.Due to different screen display, the color of actual item may vary slightly from images.
If the brightness comes from outdoor lighting, blocking it at the bedroom window is a practical immediate step. The government’s planning guidance describes light intrusion as light spilling beyond the area being lit and notes that light can impair sleep. GOV.UK light pollution guidance.
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Use a fan only within the stated heat guidance
Department of Health and Social Care and UK Health Security Agency guidance for England says an electric fan may be used when ambient air is below 35°C. It cautions against directing the fan straight at the body because this can contribute to dehydration. A fan moves air and may make you feel more comfortable; the cited advice does not say it lowers the room’s air temperature or replaces cooling a dangerously hot room. The NHS also recommends checking room temperatures during hot weather. England heat-safety guidance.
Rank #3
- SET DETAILS: 2 charcoal gray curtains per package. Each panel measures 42 inch wide by 63 inch long with 6 silver metal grommets (1.6 inch inner diameter) on top, easy to install and slide.
- LIGHT BLOCKING: these bedroom curtains block out 98% sunlight and UV (darker color works better). Get you a good night sleep, afternoon nap and weekend lie-ins. Also protect furniture and carpet from the fading effects of the sun.
- QUALITY FABRIC: These thick living room curtains work well in noise reducing and privacy protection. Same solid color on both sides. The material feels soft with no chemical smell, safe for kids room and nursery room.
- ENERGY SAVING: these energy efficient curtains can reduce room heat and cold loss through window during winter and summer, help cut your energy bills.
- EASY CARE: these privacy drapes are machine washable below 86℉; Gentle cycle; Do not bleach; Tumble dry low; Warm iron.
Recognise when heat needs urgent attention
Older people, especially those aged 65 and over, young children, pregnant people, people with long-term health conditions and people taking certain medicines are among those at increased risk from hot weather, according to England guidance. The guidance estimates that 2,803 people aged 65 and over died due to heat in England in 2022. It also predicts that annual heat-related deaths may triple by 2050; that is a projection, not a certain outcome.
For suspected heatstroke, call 999. If someone is unwell and you are concerned but it is not an emergency, contact NHS 111. The England heat-safety guidance explains the risks and response.
Rank #4
- Made of high quality durable 100% polyester fabric, our blackout curtains are super smooth, soft and free from chemical smell
- Package Includes: 2 black curtain panels, each blackout curtain measures 52 inch wide and 84 inch length constructed with 8 silver grommets measuring 1.6 inches inner diameter
- Blackout Curtains and Privacy Maximization: Curtains impede 85%-99% light and UV ray(Darker colors more better).The curtains are made using a triple weave innovative production method, and they help maximize privacy and reduce some noisy
- Energy Saving Curtains: These thermal insulated curtains help prevent energy loses by insulating hot summers and cold winters. Perfect thermal curtains for bedroom, living room, kids room and nursery room
- Care Instructions: Our room darkening blackout curtain machine washable, do not bleach, iron at low temperature settings
Where this advice applies
The heat-specific recommendations here come chiefly from England public-health guidance, alongside NHS sleep advice. Heat conditions, housing and local recommendations differ by location, so readers outside England should follow their local public-health advice. These sources do not establish one ideal sleep temperature or quantify the cooling effect of a particular curtain, blind or fan.
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Quick Recap
Best Value
- Pair Sold: Each package includes 2 panels of blackout curtains. Each panel measures 40"W x 63"L, with a pair measuring 80"W x 63"L. Each panel has 6 anti-rust silver grommets(1.6 inch inner diameter) which would fit most standard curtain rods
- Light Blocking: Our blackout curtains block 95% to 60% of light and UV, with darker colors up to 95% and medium shades at 80%. Even white color reduces light by 60%. Whether you need darkness for deep sleep in the bedroom or reduced glare for movie nights in the living room, these curtains deliver light blockage while enhancing your space's comfort and aesthetics
- High-Quality Material: Crafted from high-quality 225GSM polyester fabric, these curtains offer enhanced durability and elegant drape. The soft blackout material features triple-layer weaving technology, with a middle layer of black yarn for superior light blocking and privacy. Both sides feature the same refined color, ensuring a seamless look that elevates your home’s aesthetic with understated sophistication
- Energy Saving: The thermal-insulated fabric keeps heat out in summer and retains warmth in winter, reducing your reliance on AC/heating and lowering energy costs by up to 15%. They are perfect for living rooms, bedrooms, patios, villas and offices
- Easy Care: Machine washable in cold water. Tumble dry. Gentle cycle. Do not bleach. Quick ironing or steam cleaning at low temperature if needed
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