If you're suffering from hot sleeping or a mattress that leaves you feeling sore, the 7-Zone Cooling Gel Mattress Topper will put an end to your sleep woes. Crafted from a generous 4 inches of high quality cooling gel-infused memory foam, this exceptional topper keeps you feeling cool from the inside out. Our gel infusion whisks away excess body heat throughout the night, ensuring you stay perfectly cool and don't overheat. It's encased in a cool-to-the-touch breathable cover that offers an instant chill the moment you lie down, along with beautiful softness that'll make bedtime that much more comfy. To support high pressure areas like the shoulders, hips, and knees, it's designed with Zinus' patented 7-zone pressure relief system. So you get extra softness under areas that need it most, a more customized fit for your curves, and relief from those morning aches and pains. The 7-Zone Topper is made to fit right beneath your fitted sheet and includes an anti-slip bottom that helps keep everything in place. Its zip-on cover is also removable and machine washable. Giving your current mattress a cooling, pressure-relieving facelift is easier than you could've ever imagined with this premium, sleep-enhancing layer. Size: california king. Color: White.