{"product_id":"full-mattress-12-in-hybrid-mattress-in-a-box-black-gray-comfort","title":"Full Mattress 12 in Hybrid Mattress in a Box - Black \u0026 Gray Comfort","description":"\u003cp\u003eIn this review of the Full Mattress 12 in Hybrid in black and gray, the bottom line is simple: it is best for sleepers who want balanced support with a tailored feel and modern styling. The mattress blends a seven-zone pocket spring layout with gel memory foam layers to deliver targeted pressure relief and motion isolation, making it a strong choice for couples, back sleepers, and anyone seeking a cooler-feeling foam surface without losing edge stability.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSeven-Zone Zoned Support:\u003c\/strong\u003e Precisely tuned zones give different parts of the body the right amount of lift so the spine stays aligned from head to toe.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e580 Pocket Springs:\u003c\/strong\u003e Independent pocketed coils provide localized support and reduce motion transfer so one partner's movements are less likely to disturb the other.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e2cm 25D Resilient Foam:\u003c\/strong\u003e A high-resilience foam layer contours to the body for pressure relief while maintaining a responsive surface that prevents sinking.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eEdge Reinforcement:\u003c\/strong\u003e Double-reinforced 2.3mm edge springs create a firmer perimeter for better sitting support and reduced edge sag.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eBreathable Construction:\u003c\/strong\u003e Spring ventilation and a breathable cover help dissipate heat and moisture for a cooler sleep experience.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCertifications and Durability:\u003c\/strong\u003e CertiPUR-US and OEKO certifications plus extensive compression testing back its claim to be free from harmful substances and resistant to sagging.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis mattress is well suited to full-size sleepers who need a middle-ground comfort level - people who want more support than an all-foam mattress but still appreciate foam pressure relief. Couples who value motion isolation and edge support will find the independent pocket springs and reinforced perimeter helpful for undisturbed rest.\u003c\/p\u003e\u003cp\u003eThose who prefer an ultra-soft, sinking hug or a very firm, orthopedic feel may want to compare other models; firmness impressions are mixed among users, so shoppers expecting a precise firmness number should test in person when possible.\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, balanced support from the combination of pocket springs and 25D foam.\u003c\/li\u003e\n\u003cli\u003eGood motion isolation thanks to independently operating springs, making it suitable for couples.\u003c\/li\u003e\n\u003cli\u003eFirm edge support reduces sag and expands usable sleeping surface.\u003c\/li\u003e\n\u003cli\u003eCertiPUR-US and OEKO certifications provide reassurance about materials.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eFirmness is described differently by customers, so it may feel slightly soft or not firm enough depending on personal preference.\u003c\/li\u003e\n\u003cli\u003eRequires up to 3 days to fully expand and reach optimal comfort after unboxing.\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\u003eFull\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\u003eSpring Count\u003c\/td\u003e\n\u003ctd\u003e580 pocket springs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFoam Layer\u003c\/td\u003e\n\u003ctd\u003e2 cm 25D high-resilience foam\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEdge Construction\u003c\/td\u003e\n\u003ctd\u003eDouble-reinforced 2.3 mm edge springs\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCover Color\u003c\/td\u003e\n\u003ctd\u003eBlack and gray, circular pattern\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCertifications\u003c\/td\u003e\n\u003ctd\u003eCertiPUR-US and OEKO\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThe Full 12 in hybrid is a compelling choice for sleepers who want a balanced, supportive mattress with targeted zoned support and reliable edge stability. It delivers strong value through its combination of pocket springs, resilient foam, and certified materials, making it a sensible buy for couples and everyday sleepers seeking durable comfort.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eHow long does the mattress take to expand?\u003c\/strong\u003e\u003cbr\u003eIt typically needs about 3 days to fully expand and reach its optimal comfort after unboxing.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs the mattress suitable for couples?\u003c\/strong\u003e\u003cbr\u003eYes; independent pocket springs and good motion isolation help minimize partner disturbance.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it contain harmful chemicals or fiberglass?\u003c\/strong\u003e\u003cbr\u003eNo; it is CertiPUR-US and OEKO certified and described as free from harmful substances and fiberglass.\u003c\/p\u003e","brand":"Susalt","offers":[{"title":"Default Title","offer_id":48225628455131,"sku":"B0DQPLZZWY","price":179.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/91Xc0QMTdaL._AC_SL1500.jpg?v=1770804932","url":"https:\/\/gearmusthave.com\/products\/full-mattress-12-in-hybrid-mattress-in-a-box-black-gray-comfort","provider":"GearMustHave","version":"1.0","type":"link"}