【Breathable and Cool, Making Sleep More Comfortable】TERISTE mattress pillowtop layer is made of breathable polyester, it’s filled with 3D snow down alternative filling, which promotes air circulation and keeps you cool and comfortable all night long. Whether it’s a hot summer day or a cold winter night, it provides optimal temperature regulation to ensure a restful sleep. 【Support and Comfort for a More Relaxed Body】The unique memory foam layer of the TERISTE mattress conforms to the contours of your body, evenly distributing weight and relieving pressure points. It is ergonomically designed to cater to various body types and sleep preferences. Not only does this allow for a comfortable night's sleep, it also helps prevent back and neck pain, ensuring a deeper, more restorative sleep. 【High-Quality Materials for Safer Sleep】TERISTE mattresses are made from the highest quality materials and pay attention to details to create a luxurious sleep experience. CertiPUR-US and Oeko-Tex Standard 100 certified, every aspect of this mattress is designed to enhance the quality of your sleep, from the soft surface to the supportive core. 【Tightly Packed for Easy Cleaning】TERISTE mattresses are available in a variety of sizes while being packaged in a convenient box for easy transportation and installation. When you need to use it, just open the plastic bag, disassemble the mattress, and wait patiently for 72 hours to allow the mattress to fully expand, and you will get the best mattress. For your convenience, the mattress includes a washable cover that you can remove and wash regularly, ensuring a healthier sleep environment. 【High-Quality After-Sales Service, Peace of Mind】TERISTE is committed to comprehensive warranty and excellent customer service. We provide a 10-year warranty and 24-hour customer support service. If you encounter any problems after receiving the goods, you can always come to us to solve them. You can rest assured that your satisfaction is our greatest motivation. ASIN B0DG4HKT67 Size King (U.S. Standard) Color White Set Name King Mattress Set with Pillowtop topstyle Breathable and Supportive Top Brand Name TERISTE Item Depth 8 inches Model Name 8 Inch King Mattress Breathable Gel-Memory Foam Plus Pillowtop Mattress, Cool and Skin-Friendly, Fiberglass Free, Mattress in a Box, CertiPUR-US® Certified Style Name 8 INCH Item Weight 51.49 Pounds Manufacturer TERISTE Fill Material Memory Foam Material Type Memory Foam Cover Material Polyester Item Dimensions 79.5 x 76 x 8 inches Number of Layers 3 Product Benefits Comfortable, Durable Construction Type Memory Foam Additional Features Pressure Relief Age Range Description Adult,Kid Item Firmness Description Medium Product Care Instructions Hand Wash Only Mattress Comfort Layer Material Memory foam Item Dimensions L x W x Thickness 79.5 L x 76 W x 8 Th