--- product_id: 594431379 title: "14 Inch Firm King Size Mattress in a Box, Copper Memory Foam King Mattress with Graphene Cooling Cover, Firm King Size Bed for Back Pain Relief, CertiPUR-US Certified, Foam Made in USA" brand: "dyonery" price: "5685.19 DT" currency: TND in_stock: true url: https://www.desertcart.tn/products/594431379-14-inch-firm-king-size-mattress-in-a-box-copper store_origin: TN region: Tunisia --- # Cooling Graphene Cover 14-inch Firm Support 10-Year Warranty 14 Inch Firm King Size Mattress in a Box, Copper Memory Foam King Mattress with Graphene Cooling Cover, Firm King Size Bed for Back Pain Relief, CertiPUR-US Certified, Foam Made in USA **Brand:** dyonery **Price:** 5685.19 DT **Availability:** ✅ In Stock ## Summary > ❄️ Sleep Smart, Wake Refreshed: The Mattress That Works as Hard as You Do ## Quick Answers - **What is this?** 14 Inch Firm King Size Mattress in a Box, Copper Memory Foam King Mattress with Graphene Cooling Cover, Firm King Size Bed for Back Pain Relief, CertiPUR-US Certified, Foam Made in USA by dyonery - **How much does it cost?** 5685.19 DT with free shipping - **Is it available?** Yes, in stock and ready to ship - **Where can I buy it?** [www.desertcart.tn](https://www.desertcart.tn/products/594431379-14-inch-firm-king-size-mattress-in-a-box-copper) ## Best For - dyonery enthusiasts ## Why This Product - Trusted dyonery brand quality - Free international shipping included - Worldwide delivery with tracking - 15-day hassle-free returns ## Key Features - • **Effortless Setup:** Compressed in a box, expands fully in 24 hours—no hassle, no stress. - • **Stay Cool All Night:** Graphene knit cover wicks heat & moisture for optimal sleep temperature. - • **Certified Safe & Clean:** CertiPUR-US & Oeko-Tex Standard 100 certified for a toxin-free sleep zone. - • **Durability You Can Trust:** Backed by a 10-year limited warranty for long-lasting comfort. - • **Pressure-Relieving Copper Foam:** Copper-infused Aerofusion memory foam contours perfectly to your body. ## Overview This 14-inch firm king size mattress features a cooling graphene knit cover and copper-infused memory foam that adapts to your body for pressure relief and odor control. Delivered compressed in a box for easy setup, it’s CertiPUR-US and Oeko-Tex certified for safety and backed by a 10-year warranty, ensuring a clean, durable, and comfortable sleep experience. ## Description 14 Inch Firm King Size Mattress in a Box, Copper Memory Foam King Mattress with Graphene Cooling Cover, Firm King Size Bed for Back Pain Relief, CertiPUR-US Certified, Foam Made in USA ## Features - Cooling Graphene Cover: This mattress features a graphene knit fabric cover that provides a cool and comfortable feel throughout the night. Its breathable, smooth texture efficiently wicks away heat and moisture to maintain an optimal sleep temperature. The hidden zipper design allows for easy removal of the cover without flipping the mattress, simplifying cleaning and maintenance. - Advanced Memory Foam Layer: The copper-infused Aerofusion memory foam layer contours to your body, offering personalized, pressure-relieving support that adapts to your unique shape and any sleeping position. Meanwhile, the natural properties of copper help eliminate odors, reduce the risk of skin irritation, and promote a cleaner, healthier sleep environment. - Effortless Setup: Our mattress is compressed, rolled, and packed in a compact box for easy delivery and setup. It is compatible with different types of frames, including box springs, slatted platforms, foundations, flat surfaces, and even floors. Simply unbox the mattress and allow 24 hours for it to fully expand to its original shape. - CertiPUR-US and Oeko-Tex Standard 100 Certified: Our mattresses are certified by both CertiPUR-US and Oeko-Tex Standard 100. All components, from the premium memory foam to the breathable fabrics, are rigorously tested for harmful chemicals and volatile organic compounds, delivering a safe sleep environment you can trust. - 10-Year Limited Warranty for Worry-Free Sleep: Built with high-quality materials, our mattress is designed for lasting comfort and durability. We stand behind our product with a 10-year limited warranty, providing you with peace of mind and hassle-free assistance should you need it. Please note that our mattresses cannot be returned once opened. ## Product Details - **Brand:** Dyonery - **Size:** King - **Product Dimensions:** 80"L x 76"W x 14"Th - **Top Style:** Tight Top - **Cover Material:** Cooling Knit Fabric - **Number of Layers:** 2 - **Fill Material:** copper memory foam - **Special Feature:** copper-gel infused - **Color:** Black - **Model Name:** DYO-BLACK-copper ## Images ![14 Inch Firm King Size Mattress in a Box, Copper Memory Foam King Mattress with Graphene Cooling Cover, Firm King Size Bed for Back Pain Relief, CertiPUR-US Certified, Foam Made in USA - Image 1](https://m.media-amazon.com/images/I/81la-nTvQ0L.jpg) ![14 Inch Firm King Size Mattress in a Box, Copper Memory Foam King Mattress with Graphene Cooling Cover, Firm King Size Bed for Back Pain Relief, CertiPUR-US Certified, Foam Made in USA - Image 2](https://m.media-amazon.com/images/I/81c3LdBmV5L.jpg) ![14 Inch Firm King Size Mattress in a Box, Copper Memory Foam King Mattress with Graphene Cooling Cover, Firm King Size Bed for Back Pain Relief, CertiPUR-US Certified, Foam Made in USA - Image 3](https://m.media-amazon.com/images/I/91NlGy0hj1L.jpg) ![14 Inch Firm King Size Mattress in a Box, Copper Memory Foam King Mattress with Graphene Cooling Cover, Firm King Size Bed for Back Pain Relief, CertiPUR-US Certified, Foam Made in USA - Image 4](https://m.media-amazon.com/images/I/71rYsRgpPGL.jpg) ![14 Inch Firm King Size Mattress in a Box, Copper Memory Foam King Mattress with Graphene Cooling Cover, Firm King Size Bed for Back Pain Relief, CertiPUR-US Certified, Foam Made in USA - Image 5](https://m.media-amazon.com/images/I/81LETKucPmL.jpg) ## Available Options This product comes in different **Size, Style** options. --- ## Why Shop on Desertcart? - 🛒 **Trusted by 1.3+ Million Shoppers** — Serving international shoppers since 2016 - 🌍 **Shop Globally** — Access 737+ million products across 21 categories - 💰 **No Hidden Fees** — All customs, duties, and taxes included in the price - 🔄 **15-Day Free Returns** — Hassle-free returns (30 days for PRO members) - 🔒 **Secure Payments** — Trusted payment options with buyer protection - ⭐ **TrustPilot Rated 4.5/5** — Based on 8,000+ happy customer reviews **Shop now:** [https://www.desertcart.tn/products/594431379-14-inch-firm-king-size-mattress-in-a-box-copper](https://www.desertcart.tn/products/594431379-14-inch-firm-king-size-mattress-in-a-box-copper) --- *Product available on Desertcart Tunisia* *Store origin: TN* *Last updated: 2026-08-21*