(Image credit: Future)

Temperatures are soaring, the Old Farmer's Almanac is predicting a "hotter-than-usual" summer for much of the US, and the UK is experiencing record-breaking heat. How are you meant to sleep with all that going on?Here at Tom's Guide, we know a thing or two about struggling to sleep in the heat. In last year's heatwaves we were left restless, awake at 3 a.m. and trying every cooling sleep hack that drifted across our algorithm. This year, we're putting that pain to good use by curating the sleep tips that actually work and enjoying good rest even during the hottest nights of the year.Below are the best of the best tips for sleeping in hot weather, tried, tested and approved by our sleep team. (Including hacks you can try out tonight, no purchase necessary.) So close your curtains, fill your ice cube maker, and enjoy sweet dreams of the Arctic Circle...Key takeawaysUse the caveman method: close the windows and curtains during the day to keep warm air out and open them up overnight to let cool air in.Feel cozy while sleeping cool: Dress your bed in a breathable top sheet to create a feeling of security without stuffiness.Go natural: Check the labels on your bedding and pajamas, then swap out synthetic fibers for natural fabrics such as cotton and bamboo.Harness any and all breezes: Place your fans facing an open window to create a cross breeze, or freeze a bottle of salt water and place it in the path of a desk fan to supercharge the cooling.Try the inverse hot water bottle hack: Half-fill your hot water bottle with water and freeze it. Place the frozen bottle by your feet for quick and effective cooling.How to keep your bedroom cool in a heatwave: Expert tips1. Try the 'caveman method'