{"product_id":"sealy-posture-extra-firm-mattress-double-4ft6","title":"Sealy | Posture Extra Firm Mattress | Double | 4ft6","description":"\u003cp\u003eSealy have been using innovative and cutting-edge technology in their mattresses for over 140 years, using their extensive expertise to perfect the best possible nights rest. Their combination of innovative technology with expert design enhances your sleep night after night.\u003c\/p\u003e \n\u003cp\u003eTreat yourself to the Posture Extra Firm mattress, where every detail has been thoughtfully designed, rigorously tested and expertly crafted to deliver long-lasting performance for everyone. At its core is PostureTech 2.0 spring that is designed to deliver consistent support right across the sleep surface, distribute weight evenly, and help maintain a natural shape and healthy posture. Enhancing the support system is the intelligent comfort architecture a double layer of OptiForm extra-firm foam, gently cushions and adapts to your body. All this is surrounded by EdgeGuard that strengthens the mattress sides for added stability and a maximised sleep surface, ensuring dependable edge-to-edge performance.\u003c\/p\u003e \n\u003cp\u003eThe mattress also has Bio Based Proshield that helps keep allergens at bay and provides a clean and fresh night’s sleep. Together this boasts an extra firm feel, perfect for those who prioritise support for the body. Every layer has been thoughtfully considered delivering sustainable progress without compromising comfort or durability. It’s exactly what you would expect from the world’s no.1 sleep brand. Available in multiple sizes.\u003c\/p\u003e \n\u003ch5\u003eKey Features:\u003c\/h5\u003e \n\u003cul\u003e \n\u003cli\u003eSealy mattress\u003c\/li\u003e \n\u003cli\u003ePostureTech 2.0 spring\u003c\/li\u003e \n\u003cli\u003eEdge guard\u003c\/li\u003e \n\u003cli\u003eOptiform layers\u003c\/li\u003e \n\u003cli\u003eBio Based Proshield\u003c\/li\u003e \n\u003cli\u003eExtra firm\u003c\/li\u003e \n\u003cli\u003eAnti-allergen\u003c\/li\u003e \n\u003cli\u003eAvailable in multiple sizes\u003c\/li\u003e \n\u003c\/ul\u003e \n\u003cstyle\u003e\nul.mattress-spec-icons {padding-top:20px;list-style:none;max-width:800px;}\nul.mattress-spec-icons li {float:left;width:25%;padding:0 20px;margin-bottom:20px;}\n@media screen and (max-width:650px){ul.mattress-spec-icons {list-style:none;max-width:400px;}ul.mattress-spec-icons li {width:50%;padding:0 10px;}}\n\u003c\/style\u003e\n\u003cul class=\"mattress-spec-icons clearfix\"\u003e\n    \u003cli\u003e\n    \u003cimg style=\"display:block; margin:0 auto;max-width:75%;margin-bottom:10px;\" src=\"https:\/\/hnuk.blob.core.windows.net\/hnuk-assets\/images\/mattress-icons\/Airstream-Fibre.jpg\" alt=\"AIRSTREAM FIBRE\"\u003e\n    \u003cp style=\"text-transform:uppercase;margin:0 0 5px;min-height:28px;text-align:center;font-family:arial,sans-serif;font-size:14px;font-weight:bold !important;line-height:1em;\"\u003e\n                AIRSTREAM FIBRE\n    \u003c\/p\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n    \u003cimg style=\"display:block; margin:0 auto;max-width:75%;margin-bottom:10px;\" src=\"https:\/\/hnuk.blob.core.windows.net\/hnuk-assets\/images\/mattress-icons\/Bio-based-Prosheild.jpg\" alt=\"BIO-BASED PROSHEILD\"\u003e\n    \u003cp style=\"text-transform:uppercase;margin:0 0 5px;min-height:28px;text-align:center;font-family:arial,sans-serif;font-size:14px;font-weight:bold !important;line-height:1em;\"\u003e\n               BIO-BASED PROSHEILD\n    \u003c\/p\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n    \u003cimg style=\"display:block; margin:0 auto;max-width:75%;margin-bottom:10px;\" src=\"https:\/\/hnuk.blob.core.windows.net\/hnuk-assets\/images\/mattress-icons\/EgdeGuard.jpg\" alt=\"EGDEGUARD\"\u003e\n    \u003cp style=\"text-transform:uppercase;margin:0 0 5px;min-height:28px;text-align:center;font-family:arial,sans-serif;font-size:14px;font-weight:bold !important;line-height:1em;\"\u003e\n               EGDEGUARD\n    \u003c\/p\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n    \u003cimg style=\"display:block; margin:0 auto;max-width:75%;margin-bottom:10px;\" src=\"https:\/\/hnuk.blob.core.windows.net\/hnuk-assets\/images\/mattress-icons\/Eternity-Fibre.jpg\" alt=\"ETERNITY FIBRE\"\u003e\n    \u003cp style=\"text-transform:uppercase;margin:0 0 5px;min-height:28px;text-align:center;font-family:arial,sans-serif;font-size:14px;font-weight:bold !important;line-height:1em;\"\u003e\n                ETERNITY FIBRE    \u003c\/p\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n    \u003cimg style=\"display:block; margin:0 auto;max-width:75%;margin-bottom:10px;\" src=\"https:\/\/hnuk.blob.core.windows.net\/hnuk-assets\/images\/mattress-icons\/Optiform-Extra-Firm-Foam.jpg\" alt=\"OPTIFORM EXTRA FIRM FOAM\"\u003e\n    \u003cp style=\"text-transform:uppercase;margin:0 0 5px;min-height:28px;text-align:center;font-family:arial,sans-serif;font-size:14px;font-weight:bold !important;line-height:1em;\"\u003e\n               OPTIFORM EXTRA FIRM FOAM\n    \u003c\/p\u003e\n    \u003c\/li\u003e\n    \u003cli\u003e\n    \u003cimg style=\"display:block; margin:0 auto;max-width:75%;margin-bottom:10px;\" src=\"https:\/\/hnuk.blob.core.windows.net\/hnuk-assets\/images\/mattress-icons\/Posturetech-2.0.jpg\" alt=\"POSTURETECH 2.0\"\u003e\n    \u003cp style=\"text-transform:uppercase;margin:0 0 5px;min-height:28px;text-align:center;font-family:arial,sans-serif;font-size:14px;font-weight:bold !important;line-height:1em;\"\u003e\n                POSTURETECH 2.0\n    \u003c\/p\u003e\n    \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sealy","offers":[{"title":"Default Title","offer_id":55634969264504,"sku":"1331371","price":799.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0630\/5362\/7541\/files\/SL-2733-HN_SELECT-EXTRA-FIRM_BEDDING_Front-on_60e0ab49-62ca-491d-a7a5-f4273a100bf7.jpg?v=1787546822","url":"https:\/\/www.harveynorman.co.uk\/products\/sealy-posture-extra-firm-mattress-double-4ft6","provider":"Harvey Norman","version":"1.0","type":"link"}