With the UK enduring a baking summer, Brits are facing another round of restless, warm nights as temperatures fail to drop after dark. Online searches for electric fans have surged by 600 per cent over the past month, as households across the country search for ways to beat the heat and get a good night's rest.
However, home comfort experts emphasise that fans and air conditioning are not the only solution. Vaillant, widely known as a leading expert in keeping British homes warm and cosy, also knows that staying comfortable is just as important in summer. To help the nation stay comfortable without increasing energy bills, Vaillant has outlined five simple, expert-backed ways to cool the home and protect sleep during peak summer temperatures.
Block out daytime heat
The simplest way to keep a property cool at night is to close windows and draw curtains or blinds early in the morning. Blocking direct sunlight during the day will help keep the space cool, and once evening temperatures drop below indoor levels, windows can be reopened to create a cross-breeze and purge trapped heat.
Avoid generating additional heat
Appliances like ovens, dishwashers, and washing machines emit significant heat while in use. Limiting appliance use during peak hours ensures living spaces remain as cool as possible in the evenings, creating a better temperature for sleep.
Utilise lower levels and open your loft
Warm air naturally rises, meaning upper-floor and loft bedrooms routinely hold the highest temperatures overnight. If possible, moving to a lower floor or sleeping on a ground-floor sofa bed during extreme heatwaves can provide a significantly cooler night's rest.
As heat rises within a house, opening loft vents or access hatches provides a clear path for trapped heat to escape upwards. This upward draft can also help draw cooler, fresh air in through ground-floor windows.
Switch to breathable fabrics
Synthetic bedding and heavy duvets lock in body heat and moisture. Swapping to lightweight sheets made from natural, breathable fibres like cotton or linen allows heat to dissipate easily. The same rule applies to sleepwear – choose loose-fitting, natural fabrics to regulate core body temperature.
Vaillant understands that keeping homes efficient and comfortable is a year-round priority. By taking a few proactive steps during the day, households are able to improve their sleeping conditions at night without incurring extra costs. Understanding how air moves and how heat builds up in a building allows homeowners to work with their property's natural airflow rather than relying solely on energy-heavy cooling appliances.



