{"product_id":"hotel-level-firm-king-size-mattress-12-inch-certipur-us-mattress-in-a-box","title":"Advanced Support Firm King Hybrid Mattress 12 Inch","description":"\u003cdiv\u003e\n\u003cp\u003eWake without stiffness and sleep continuously beside a restless partner thanks to a \u003cb\u003efirm king hybrid mattress\u003c\/b\u003e engineered to stabilize your spine while isolating every movement.\u003c\/p\u003e\n\u003cp\u003eCutting a precise \u003cb\u003e12-inch profile\u003c\/b\u003e, this bed combines a pressure-relieving comfort top with a resilient support core. The proprietary \u003cb\u003eRuoysun 7-zone pocket spring system\u003c\/b\u003e utilizes over 600 individually wrapped coils that contour to your exact body shape. Your shoulders gently sink while the lumbar zone receives targeted elevation, keeping your posture naturally aligned from head to feet. Because each coil operates independently, tossing or standing in bed remains completely silent and completely localized to your side.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eAdvanced Motion Isolation\u003c\/b\u003e: Individually pocketed springs absorb transfer instantly, ensuring uninterrupted deep sleep for couples.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003ePrecision Spinal Alignment\u003c\/b\u003e: 7-zoned core support maintains neutral posture, actively reducing morning back tension.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eActive Cooling Architecture\u003c\/b\u003e: Ventilated comfort layers, a cooling-gel memory foam panel, and natural spring gaps continuously dissipate heat and moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eReinforced Edge Stability\u003c\/b\u003e: Three rows of fortified 2.2 mm perimeter springs prevent roll-off and deliver durable, even support across the entire king surface.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eSafe, Ready-to-Roll Design\u003c\/b\u003e: Compressed into an easily portable package, it expands fully in 48–72 hours using fiberglass-free, CertiPUR-US certified foams.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eRated medium-firm (5–7.5), this mattress comfortably supports side, back, and stomach sleepers regardless of body weight. Unpack, unroll, and let the independent spring network adapt to your nightly routine for consistent restoration and confident posture support.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"ShipItFurniture","offers":[{"title":"Grey \/ King (U.S. Standard) \/ 12\" Firm","offer_id":54521040240950,"sku":"26fc9064-0767-4012-a5c2-3976ec6403e7","price":335.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/1746\/3862\/files\/14f6182962345d4add2e352c2f8575c8.jpg?v=1788791228","url":"https:\/\/shipitfurniture.com\/es\/products\/hotel-level-firm-king-size-mattress-12-inch-certipur-us-mattress-in-a-box","provider":"ShipItFurniture","version":"1.0","type":"link"}