{"product_id":"hotel-level-firm-king-size-mattress-12-inch-certipur-us-mattress-in-a-box","title":"King Size Firm Hybrid Mattress 12 Inch, Pocket Spring Support","description":"\u003cdiv\u003e\n\u003cp\u003eThis 12-inch firm king size hybrid mattress combines a 7-zone pocket spring system with cooling gel memory foam to provide targeted support and pressure relief. Designed as a mattress in a box, it delivers a hotel-level sleep experience with enhanced spine alignment and motion isolation for undisturbed rest.\u003c\/p\u003e \u003cul\u003e\n\u003cli\u003e\n\u003cb\u003eFirm Hybrid Construction\u003c\/b\u003e: Features a medium-firm feel with a plush memory foam top layer and a 7-zone precision-tuned pocket spring base for optimal comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eMotion Isolation Support\u003c\/b\u003e: Over 600 individually wrapped pocket springs work independently to absorb movement, preventing disturbances for light sleepers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eEnhanced Edge Support\u003c\/b\u003e: Includes three rows of reinforced perimeter springs that provide 30% more structural stability, allowing comfortable sitting near the edges.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eThermoregulatory Design\u003c\/b\u003e: A 7-layer build incorporates a cooling-gel memory foam layer and a breathable knit cover to wick away heat and moisture.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eErgonomic Spine Alignment\u003c\/b\u003e: The precision-tuned springs conform to natural body curves, offering targeted lumbar lift and reducing morning stiffness.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCertified Safety Materials\u003c\/b\u003e: Built with CertiPUR-US certified foams and a fiberglass-free inner structure for a healthier sleep environment.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eCompact Packaging\u003c\/b\u003e: Rolls and compresses into a portable box for easy delivery through standard doorways and staircases.\u003c\/li\u003e\n\u003cli\u003e\n\u003cb\u003eBreathable Airflow\u003c\/b\u003e: Natural air channels between the pocket springs promote continuous ventilation to keep the sleeping surface cool and dry.\u003c\/li\u003e\n\u003c\/ul\u003e \u003cp\u003eBy combining advanced cooling technology with robust edge support and motion absorption, this king size mattress in a box ensures a comfortable and efficient sleep environment. It adapts to different sleep positions and body weights, making it an ideal choice for couples sharing a bed or individuals seeking reliable back support and pressure-free rest.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Simmerlyhome","offers":[{"title":"Grey \/ King (U.S. Standard) \/ 12\" Firm","offer_id":48670577590513,"sku":"B0HC5KPLXQ","price":412.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0810\/4719\/1793\/files\/14f6182962345d4add2e352c2f8575c8.jpg?v=1788270482","url":"https:\/\/simmerlyhome.com\/products\/hotel-level-firm-king-size-mattress-12-inch-certipur-us-mattress-in-a-box","provider":"Simmerlyhome","version":"1.0","type":"link"}