{"product_id":"king-size-mattress-12-in-hybrid-mattress-in-a-box-cooling-gel","title":"King Size Mattress 12 in Hybrid Mattress in a Box - Cooling Gel","description":"\u003cp\u003eIn this review the 12 in King Size Mattress from Gsleepee is assessed for couples and anyone who prefers a medium-firm, supportive sleep surface. The bottom line: it blends high-density memory foam with individually wrapped pocket springs to deliver clear pressure relief and steady support, making it a solid choice for sleepers who want contouring without excessive sink. Setup is simple since it ships compressed in a box and the mattress expands within 24-72 hours; the cooling gel layer and breathable 3D knit cover are the standout features for warm sleepers.\u003c\/p\u003e\n\u003ch2\u003eKey Features\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eInnerspring hybrid:\u003c\/strong\u003e Individually wrapped pocket springs provide targeted support and reduce motion transfer between sleeping partners.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMemory foam comfort:\u003c\/strong\u003e High-density memory foam contours to the body for pressure relief and helps maintain spinal alignment for back and side sleepers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCooling gel layer:\u003c\/strong\u003e Gel-infused memory foam works with a breathable 3D knit fabric cover to regulate temperature and reduce overheating during the night.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotion isolation:\u003c\/strong\u003e The pocket spring arrangement plus foam layers limit disturbances so partners are less likely to wake each other.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMattress in a box:\u003c\/strong\u003e Compressed delivery and easy setup make unpacking and expanding the king mattress quick, with full expansion in one to three days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertiPUR-US certified foam:\u003c\/strong\u003e Foam is free from harmful substances, offering a safer sleep environment and long-term durability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eWho It's For\u003c\/h2\u003e\n\u003cp\u003eThe mattress suits couples and single adults who need a balance of contouring comfort and responsive support; the individually wrapped coils support different body zones while the medium-firm feel prevents excessive sink. It is also a good match for people who sleep warm due to the cooling gel-infused foam and breathable cover.\u003c\/p\u003e\n\u003cp\u003eThose who prefer an ultra-soft plush surface or a very firm orthopedic mattress may want to look elsewhere, and heavyweight sleepers seeking very deep sink could consider a thicker or firmer model. People needing adjustable base compatibility should confirm base guidelines before purchase.\u003c\/p\u003e\n\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eComfortable medium-firm feel that supports the spine while relieving pressure points.\u003c\/li\u003e\n\u003cli\u003eEffective motion isolation from individually wrapped coils, improving undisturbed sleep for partners.\u003c\/li\u003e\n\u003cli\u003eCooling gel foam and breathable 3D knit cover help regulate temperature on warm nights.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eMay take up to 72 hours to fully expand and reach optimal comfort after unpacking.\u003c\/li\u003e\n\u003cli\u003eMedium-firm feel may not satisfy those wanting a very soft or very firm mattress preference.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eSize\u003c\/td\u003e\n\u003ctd\u003eKing\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\u003eConstruction\u003c\/td\u003e\n\u003ctd\u003eHybrid: memory foam + individually wrapped pocket springs\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\u003eCooling features\u003c\/td\u003e\n\u003ctd\u003eGel-infused memory foam and 3D knit breathable cover\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSafety certification\u003c\/td\u003e\n\u003ctd\u003eCertiPUR-US certified foam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eTrial \u0026amp; setup\u003c\/td\u003e\n\u003ctd\u003eShips in a box, 24-72 hours to expand; 100-night trial\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003ch2\u003eOur Verdict\u003c\/h2\u003e\n\u003cp\u003eThe 12 in King Size hybrid mattress is a practical, value-oriented option for couples and most side, back, or combination sleepers who want pressure relief with responsive support. Between the cooling gel layer, pocket springs, and CertiPUR-US foam, it offers a durable, safer sleep surface and good heat regulation, making it a compelling choice for those seeking comfort without specialty pricing.\u003c\/p\u003e\n\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow long until the mattress is ready to sleep on?\u003c\/strong\u003e\u003cbr\u003eThe mattress expands within 24-72 hours after unboxing, though it is usually comfortable within the first day; full expansion and peak comfort can take up to three days.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs this mattress good for couples?\u003c\/strong\u003e\u003cbr\u003eYes, the individually wrapped pocket springs reduce motion transfer and the medium-firm feel provides shared support suitable for most couples.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eIs the foam safe and durable?\u003c\/strong\u003e\u003cbr\u003eThe foam is CertiPUR-US certified, indicating it is free from certain harmful chemicals and designed for durability in layered construction.\u003c\/p\u003e","brand":"Gsleepee","offers":[{"title":"Default Title","offer_id":48242765431003,"sku":"B0DTQ1TX8R","price":229.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/81whSAbMb5L._AC_SL1500.jpg?v=1771098060","url":"https:\/\/gearmusthave.com\/products\/king-size-mattress-12-in-hybrid-mattress-in-a-box-cooling-gel","provider":"GearMustHave","version":"1.0","type":"link"}