(Image credit: Future / Alex Temblador) Want to avoid another summer where you're unable to sleep because of the heat? With $400 off the Latex Hybrid luxury cooling mattress at Saatva , you can beat night sweats in comfort and style. A queen is now $2,199 (was $2,599.) Saatva is behind the Classic, which is the best mattress we've tested. And I can't lie, with $400 off right now, the Classic is an appealing choice. But it's the responsive and eco-friendly cooling of the Latex Hybrid mattress that has caught my eye as the weather warms up. Why now is the time to buy a Saatva Latex Hybrid Mattress You've noticed it too, right? It's getting warm. But prepare yourself, because according to Old Farmer's Almanac , "much of North America is in for a hotter-than-normal summer." Very soon your bedroom will likely become a heat trap. Yet your circadian rhythm prefers a cooler bedroom temperature (around 65 to 70°F / 8 to 21 °C), which is why hot nights often lead to disrupted sleep.…