During a stifling UK heatwave, sleep-deprived residents turn to their freezers for simple, low-tech ways to cool bedrooms at night. Across the UK, more and more people are turning to an unexpected ally for better sleep in a heatwave: the freezer. Cooling the skin on your head and pulse points can tip the balance, and three simple freezer tricks do exactly that. Turning your hot water bottle into a freezer-fresh cold packThe winter hot water bottle also works brilliantly in reverse. The chilled eye mask and a simple freezer checklist for tonightA chilled eye mask is the third freezer hero, especially if sunrise or streetlights keep waking you.