{"product_id":"english-elm-8-inch-short-king-firm-gel-memory-foam-mattress-with-phase-change-cooling-cover","title":"8 Inch Short King Firm Gel Memory Foam Mattress with Phase Change Cooling Cover","description":"Designed for sleepers who want genuine back support without the plush sink of softer mattresses, this Short King gel memory foam mattress layers three distinct foam types beneath a phase change cooling cover to deliver firm, temperature-controlled rest. The 75 x 72-inch Short King format suits adjustable bed frames and smaller master bedrooms where a standard King's extra length isn't needed. Each layer works independently — cooling, contouring, and stabilizing — to address the full range of nighttime comfort concerns without compromising the firm feel throughout. \u003cul\u003e \u003cli\u003eDimensions: 75 L x 72 W x 8 H inches (Short King)\u003c\/li\u003e \u003cli\u003ePhase change material (PCM) cooling cover actively absorbs and releases heat to regulate surface temperature as body heat fluctuates during the night\u003c\/li\u003e \u003cli\u003e1-inch ventilated gel memory foam top layer promotes airflow and light contouring while helping dissipate excess heat buildup\u003c\/li\u003e \u003cli\u003e3-inch Fria cooling comfort foam mid-layer adds breathability and a responsive feel without reducing overall firmness\u003c\/li\u003e \u003cli\u003e4-inch high-density base foam delivers foundational support, promotes spinal alignment, and contributes to long-term mattress durability\u003c\/li\u003e \u003cli\u003eFirm feel engineered to support the back, hips, and shoulders and encourage healthy sleeping posture across sleep positions\u003c\/li\u003e \u003cli\u003eCertiPUR-US certified foams meet established standards for material content, emissions, and durability\u003c\/li\u003e \u003cli\u003eShips compressed and rolled in a box for straightforward delivery and setup, expanding to full height after unboxing\u003c\/li\u003e \u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eFeatures\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003e8 Inch Firm Memory Foam Mattress: Designed for sleepers who prefer a firmer feel with stable support, reduced sinkage, and consistent comfort throughout the night.\u003c\/li\u003e\n\u003cli\u003e1 Inch Ventilated Gel Memory Foam Layer: Gel-infused memory foam promotes airflow while providing light contouring comfort and helping dissipate excess heat.\u003c\/li\u003e\n\u003cli\u003e3 Inch Fria Cooling Foam Layer: Breathable comfort foam enhances airflow and creates a responsive sleep surface without sacrificing firm support.\u003c\/li\u003e\n\u003cli\u003e4 Inch High Density Support Core: Durable base foam delivers foundational support, helps maintain spinal alignment, and promotes long-lasting mattress performance.\u003c\/li\u003e\n\u003cli\u003ePhase Change Cooling Cover: Advanced PCM technology helps regulate surface temperature by absorbing and releasing heat as conditions change.\u003c\/li\u003e\n\u003cli\u003eFirm Support for Proper Alignment: Engineered to help support the back, hips, and shoulders while encouraging healthy sleeping posture.\u003c\/li\u003e\n\u003cli\u003ePressure Relieving Comfort Layers: Multi-layer foam construction helps distribute body weight evenly and reduce pressure buildup in key areas.\u003c\/li\u003e\n\u003cli\u003eCertiPUR-US Certified Foams: Crafted with CertiPUR-US certified materials that meet standards for content, emissions, and durability.\u003c\/li\u003e\n\u003cli\u003eMattress in a Box Delivery: Compressed and rolled for convenient shipping and setup, expanding after unboxing for quick and easy installation.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eAdditional Features\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eAssembled Length(inch): 75\u003c\/li\u003e\n\u003cli\u003eAssembled Width(inch): 72\u003c\/li\u003e\n\u003cli\u003eAssembled Height(inch): 8\u003c\/li\u003e\n\u003cli\u003eProduct weight(pound): 51\u003c\/li\u003e\n\u003cli\u003eMain Color: Grey+White\u003c\/li\u003e\n\u003cli\u003eMain Material: Foam\u003c\/li\u003e\n\u003cli\u003eProduct Dimensions: 75 L x 72 W x 8 H\u003c\/li\u003e\n\u003c\/ul\u003e\u003cbr\u003e\u003csmall\u003eNote: Product descriptions may reference specific features of \u003cstrong\u003eB047P603413-GIGA\u003c\/strong\u003e. You will receive the exact product according to the options (color, size, material, shape, etc.) you select on this page.\u003c\/small\u003e","brand":"English Elm","offers":[{"title":"Default Title","offer_id":51487172198567,"sku":"B047P603413-GIGA","price":544.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0312\/6968\/3245\/files\/B047P603413_1.jpg?v=1791566099","url":"https:\/\/englishelm.com\/products\/english-elm-8-inch-short-king-firm-gel-memory-foam-mattress-with-phase-change-cooling-cover","provider":"English Elm","version":"1.0","type":"link"}