Eight Sleep's Pod 5 cools your mattress down to 55°F in a heatwave, and it's up to $500 off in 4th of July sales

(Image credit: Eight Sleep)

It's the 4th of July weekend and while the hot weather is great for your backyard barbecue, it's a nightmare for sleep. The Eight Sleep Pod 5 smart cooling mattress cover, now up to $500 off at Eight Sleep, might be the answer to your disrupted nights and sweaty mornings.It was the hottest June on record in parts of the U.S. and with more heatwaves expected, modern problems require modern solutions. The high-tech Eight Sleep Pod mattress cover is one of the best smart beds and mattresses on the market and it's pushing the boundaries of cooler comfort. Our lead tester described the Pod 4 as "any hot sleepers dream".Want a traditional mattress that sleeps cool? Many of the top-rated beds in our best mattress guide excel at temperature regulation, and all of them are discounted in this year's best 4th of July mattress sales too. For now, here's more about the Eight Sleep Pod 5 sale...The ideal temperature for sleeping through the nightThe Eight Sleep smart mattress cover is fitted with a series water pipes that run across the surface and connect to the main Pod. These pipes warm or cool throughout the night, adjusting the bed to a temperature of your liking.The lead tester in our Eight Sleep Pod 4 mattress review describes being "blown away" by the Eight Sleep's temperature control during a heatwave. When she climbed into bed, the surface was perfectly chilled and because the bed monitors and changes the feel as you sleep, she never woke up sweaty.In winter, on the other hand, she could use the controls to "gently warm" the mattress before climbing in — none of that 'cuddling up in a snow drift' feel.