More than a quarter of Britons have abandoned their bedrooms during the current heatwave, choosing to sleep on sofas, in spare rooms, or in cooler downstairs areas, according to new research commissioned by heating and cooling specialists BOXT. The study found that 26% of people have shunned their beds entirely as homes become unbearably hot, with upstairs bedrooms transforming into furnaces after absorbing heat throughout the day.
Impact on Work and Daily Life
The effects extend beyond sleep. Seven in ten Britons (70%) say scorching weather damages their focus while working from home, and 18% now work directly in front of a fan to cope. Remarkably, 70% of workers said they would gladly commute to the office during a heatwave simply because it is more comfortable than home. Nearly six in ten (59%) find the daily commute more appealing than perspiring through another workday in a roasting house.
Relationships Feel the Heat
The hot conditions are even taking a toll on relationships. Almost one in ten (9%) have prioritised sleep over intimacy because it was too sweltering. Numerous people reported arguments with partners and flatmates over fans, open windows, and who gets the coolest spot in the house.
UK Housing Stock a Key Factor
Specialists say Britain's dated housing stock is a major reason so many households struggle during heatwaves. Designed to trap warmth in winter, many homes become massive heat chambers in summer. Upper-floor bedrooms and loft conversions are particularly notorious for becoming nighttime furnaces. Once hot air enters, it remains trapped inside. With overnight temperatures staying elevated, millions find little respite after dark. Those surveyed described their sleeping quarters as resembling ovens, greenhouses, and even toasters, with reports of restless nights, sweat-drenched sheets, and constant fan noise.
BOXT Managing Director Angus Stuthers explained: "We all know that most UK homes were built to keep heat in during winter, which is why they can suddenly feel unbearably hot during a heatwave. They become a heat trap! People are shocked by how hot loft spaces get too. In really warm weather, lofts can go above 40°C, and all that heat slowly filters down into bedrooms upstairs well into the evening."
"The upstairs of a home can easily be 5–10°C hotter than downstairs, which is why loft conversions and top-floor bedrooms are often the hardest spaces to keep cool. Brickwork, roofing materials and even external paving absorb heat throughout the day and slowly release it in the evening which is why homes can feel hottest at bedtime, even after the outside temperature drops."
Rethinking Home Cooling
Stuthers added: "Brits have always focused on keeping heat in, but as summers become hotter, the same principles of insulation also need to work in reverse by keeping heat out. One of the biggest myths is that air conditioning is expensive to run or only useful in hotter countries. Modern systems are much more efficient than people think and, unlike fans, they actually cool the room instead of just moving warm air around. Many systems can also heat your home in winter too, making them useful all year round."
"A few years ago, air conditioning may have felt like a luxury in the UK, but with hotter and more unbearable summers becoming increasingly common, more people are starting to see it as a practical part of modern home comfort."
