{"product_id":"king-size-mattress-12-inch-medium-firm-memory-foam-hybrid-cool","title":"King Size Mattress 12 Inch Medium Firm Memory Foam Hybrid - Cool","description":"\u003cp\u003eOur review of the King Size Mattress 12 Inch finds it best for couples or sleepers who want a balanced, medium firm feel with cooling and motion reduction. The biggest reason to buy is its hybrid construction: a gel memory foam top that dissipates heat combined with individual pocket springs for support and motion isolation, which delivers a cooler surface and fewer partner disturbances than all-foam beds. Setup is simple - the mattress ships compressed, and after 72 hours it reaches full loft and performance.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreathable cool fabric:\u003c\/strong\u003e Jacquard cover and gel memory foam work together to absorb and disperse body heat so the surface stays cooler through the night.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eThree-layer foam system:\u003c\/strong\u003e Cooling gel memory foam over high-density support foam provides pressure relief while preventing excessive sinkage around hips and lower back.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIndividual pocket springs:\u003c\/strong\u003e The independent coil design isolates motion so partners are less likely to feel each other move.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEnhanced edge support:\u003c\/strong\u003e A high-density perimeter coil system maintains shape and gives a stable edge for sitting or sleeping near the mattress border.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertified safe materials:\u003c\/strong\u003e Foams are CertiPUR-US certified and the materials are tested to be free of heavy metals and harmful substances for a fresher, non-odorous sleep surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eConvenient delivery and trial:\u003c\/strong\u003e Compressed and boxed for easy setup with a 100-night trial and clear unpacking steps to ensure safe expansion.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis mattress is a strong match for couples, combination sleepers, and people who need firm lumbar support without sacrificing the contouring comfort of memory foam. The pocket spring layer supports spinal alignment while the gel top layer provides pressure relief for shoulders and hips, making it suitable for most back and side sleepers who prefer a medium firm feel.\u003c\/p\u003e\u003cp\u003eIt is less ideal for sleepers who want an ultra-plush, cloud-like surface or those who need an extremely firm mattress for orthopedic prescriptions; also anyone requiring an immediately full loft should expect to wait the recommended 72 hours for complete expansion.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eComfortable medium firm balance that reduces morning aches while providing supportive spine alignment.\u003c\/li\u003e\n\u003cli\u003eEffective motion isolation from independent coils paired with memory foam keeps partner disturbances low.\u003c\/li\u003e\n\u003cli\u003eCooling Jacquard cover with gel memory foam helps prevent a stuffy feel common to older memory foam designs.\u003c\/li\u003e\n\u003cli\u003eGood value with CertiPUR-US certified foam and a 100-night trial.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eRequires up to 72 hours to fully expand, so immediate full performance is delayed.\u003c\/li\u003e\n\u003cli\u003eNot the best choice for those wanting a very soft, plush surface.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003eKing 80in x 76in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eThickness\u003c\/td\u003e\n\u003ctd\u003e12 in\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComfort level\u003c\/td\u003e\n\u003ctd\u003eMedium firm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComfort layers\u003c\/td\u003e\n\u003ctd\u003eGel memory foam over high-density support foam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport system\u003c\/td\u003e\n\u003ctd\u003eIndividual pocket springs with high-density perimeter coils\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover material\u003c\/td\u003e\n\u003ctd\u003eBreathable Jacquard fabric\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCertiPUR-US certified foams\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe King Size Mattress 12 Inch is a practical pick for couples and mixed-position sleepers who want a cooler memory foam feel plus the sturdiness of pocket springs. Its blend of gel memory foam and individual coils delivers pressure relief, motion isolation, and improved edge support at a competitive value, making it worth considering for anyone seeking a supportive medium firm hybrid mattress.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow long does it take to fully expand?\u003c\/strong\u003e\u003cbr\u003eThe mattress needs up to 72 hours to reach full expansion and optimal comfort after unpacking.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eWill it sleep hot?\u003c\/strong\u003e\u003cbr\u003eThe Jacquard cover and gel memory foam are designed to absorb and disperse body heat, so it sleeps cooler than traditional all-foam mattresses.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs there an odor on arrival?\u003c\/strong\u003e\u003cbr\u003eMaterials are tested and customers report minimal to no strong smell; any mild odor should dissipate within a short airing period.\u003c\/p\u003e","brand":"SNFPNE","offers":[{"title":"Default Title","offer_id":48688041165019,"sku":"B0FC6B1G1C","price":399.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/714OrheIaXL._AC_SL1500_00f2ae66-9c30-4a6b-8969-2a9a4dec7452.jpg?v=1778659178","url":"https:\/\/gearmusthave.com\/products\/king-size-mattress-12-inch-medium-firm-memory-foam-hybrid-cool","provider":"GearMustHave","version":"1.0","type":"link"}