LifestyleHeatwaveUK households rarely have air conditioning, so those sweltering under the sheets may struggle to find ways to beat the heat at night without spending a fortune — but this free summer cooling tip could help.16:10, 27 May 2026Hot weather can be pleasant during daylight hours as the holidays kick off, but when evening arrives, soaring temperatures can rapidly lose their appeal. Achieving a decent night's rest during a heatwave can feel virtually impossible.‌Airless rooms, heavy duvets and persistent humidity can swiftly turn bedtime into an evening of discomfort, leaving many of us restless throughout the night.‌Unlike our continental counterparts, most British households don't have air conditioning, meaning we must get creative to maintain comfortable bedrooms.‌While many turn to fans for relief, they can prove costly, and essentially they just circulate warm air around the space. Instead, renowned cleaning influencer Lynsey Crombie has devised a brilliant "really simple" method to deliver a "lovely cool night's sleep".‌Rather than purchasing a fan, all you require is a large plastic bag and your bed sheet.Sharing on her Facebook page, Lynsey Queen Of Clean, she instructed: "Pop your bed sheet into a plastic covering and place it in the freezer for 15 minutes before bed for a lovely cool night's sleep."When you get into bed later with your nice cold sheets, you're going to be lovely and cool."‌The secret behind this trick is lowering your core temperature, which can make drifting off to sleep considerably easier.When questioned about the effort involved in this hack, Lynsey replied: "No effort, no new sheets needed.Article continues below"You just grab a spare sheet out of the cupboard, pop it in the freezer, take it to bed with you, and it will cool you down before you fall asleep."One Facebook user suggested filling hot water bottles with ice-cold water instead. However, Lynsey highlighted a significant drawback: "Yeah, that's a good one, but you can never use it as a hot water bottle again."When it comes to daytime measures for keeping your bedroom cool, drawing the curtains and blinds shut can make a remarkable difference. This acts as a barrier against direct sunlight, preventing bedrooms from becoming uncomfortably warm and airless.Choose Daily Mirror as a 'Preferred Source' on Google News for quick access to the news you value.‌HeatwaveSleepProperty Care