{
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  "locale": "en_US",
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    "productName": "Beautyrest Black Series Three Extra Firm Mattress 14.25\"",
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    "sleepMatch": "red",
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    "consfeatures": [
      "Built for back and stomach sleepers who need the spine held firm all night|Triple-Stranded Pocketed Coil® Technology for zero motion transfer|Sleep Climate™ Technology and Micro Diamond™ Memory Foam draw heat away|Self-Response™ Latex layer moves air and responds in real time|Gel memory foam quilted into the surface for immediate pressure relief"
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          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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          "alt": "Beautyrest Black Series Three Extra Firm Mattress 14.25\"",
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          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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        {
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          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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        {
          "alt": "Beautyrest Black Series Three Extra Firm Mattress 14.25\"",
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          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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        {
          "alt": "Beautyrest Black Series Three Extra Firm Mattress 14.25\"",
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          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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        {
          "alt": "Beautyrest Black Series Three Extra Firm Mattress 14.25\"",
          "url": "https://www.sleepworld.com/dw/image/v2/bkcl_prd/on/demandware.static/-/Sites-sleepworld-products-catalog/default/dwb6d31d9f/images/hi-res/SIM-/SIM-SE3-5M-XF-24/SIM-SE3-4M-XF-24_4.jpg?sw=758&sh=485",
          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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        {
          "alt": "Beautyrest Black Series Three Extra Firm Mattress 14.25\"",
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          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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        {
          "alt": "Beautyrest Black Series Three Extra Firm Mattress 14.25\"",
          "url": "https://www.sleepworld.com/dw/image/v2/bkcl_prd/on/demandware.static/-/Sites-sleepworld-products-catalog/default/dw217bcca6/images/hi-res/SIM-/SIM-SE3-5M-XF-24/SIM-SE3-4M-XF-24_3.jpg?sw=140&sh=93",
          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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        {
          "alt": "Beautyrest Black Series Three Extra Firm Mattress 14.25\"",
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          "title": "Beautyrest Black Series Three Extra Firm Mattress 14.25\""
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    "variationAttributes": [
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            "length": "83.5",
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            "length": "79.5",
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image number 3\" itemprop=\"image\" /></div>\n            \n          \n        \n    </div>\n\n    \n        <div class=\"carousel-indicators carousel-thumbnails\">\n            \n                <img src=\"https://www.sleepworld.com/dw/image/v2/bkcl_prd/on/demandware.static/-/Sites-sleepworld-products-catalog/default/dw16105302/images/hi-res/SIM-/SIM-SE3-5M-XF-24/SIM-SE3-4M-XF-24_1.jpg?sw=140&amp;sh=93\" class=\"\" alt=\"Beautyrest Black Series Three Extra Firm Mattress 14.25&quot;\" itemprop=\"image\" loading=\"lazy\" />\n            \n                <img src=\"https://www.sleepworld.com/dw/image/v2/bkcl_prd/on/demandware.static/-/Sites-sleepworld-products-catalog/default/dwf86d9053/images/hi-res/SIM-/SIM-SE3-5M-XF-24/SIM-SE3-4M-XF-24_2.jpg?sw=140&amp;sh=93\" class=\"\" alt=\"Beautyrest Black Series Three Extra Firm Mattress 14.25&quot;\" itemprop=\"image\" loading=\"lazy\" />\n            \n                <img src=\"https://www.sleepworld.com/dw/image/v2/bkcl_prd/on/demandware.static/-/Sites-sleepworld-products-catalog/default/dw217bcca6/images/hi-res/SIM-/SIM-SE3-5M-XF-24/SIM-SE3-4M-XF-24_3.jpg?sw=140&amp;sh=93\" class=\"\" alt=\"Beautyrest Black Series Three Extra Firm Mattress 14.25&quot;\" itemprop=\"image\" loading=\"lazy\" />\n            \n                <img src=\"https://www.sleepworld.com/dw/image/v2/bkcl_prd/on/demandware.static/-/Sites-sleepworld-products-catalog/default/dwb6d31d9f/images/hi-res/SIM-/SIM-SE3-5M-XF-24/SIM-SE3-4M-XF-24_4.jpg?sw=140&amp;sh=93\" class=\"\" alt=\"Beautyrest Black Series Three Extra Firm Mattress 14.25&quot;\" itemprop=\"image\" loading=\"lazy\" />\n            \n        </div>\n    \n\n    <div class=\"js-main-features main-features hidden-sm-down\">\n        \n\n    <div class=\"row no-gutters\">\n        <ul>\n            \n                <li>\n                    <div class=\"adj-base\">Suitable For Adjustable Base</div>\n                 </li>\n            \n                <li>\n                    <div class=\"lowmotion\">Motion Separation</div>\n                 </li>\n            \n                <li>\n                    <div class=\"cooltech\">Cooling Technology</div>\n                 </li>\n            \n                <li>\n                    <div class=\"edge-support\">Edge Support</div>\n                 </li>\n            \n        </ul>\n    </div>\n\n\n    </div>\n    \n        <h2 class=\"sub-title d-none d-md-block\">\n            Overview\n        </h2>\n        <div class=\"long-desc hidden-sm-down\">\n            <p>Beautyrest Black Series Three Extra Firm Mattress 14.25\" Full</p><p>The Beautyrest Black Series Three Extra Firm Mattress 14.25\" is an innerspring mattress built for back and stomach sleepers who need a firm extra firm mattress for back pain relief without sacrificing the refinement of a luxury sleep system. It sits at the top of the Beautyrest Black® lineup in terms of support intensity, holding the body level and preventing the hips from sinking so the spine stays where it needs to be. This is a mattress that takes a clear position: it will not let you sink. If you've been waking up with lower back tension or flipping through softer options that never quite feel right, the Series Three Extra Firm is worth an honest look. Stop by any Mancini's Sleepworld location and our sleep specialists will put this directly alongside the competition so you can feel the difference yourself.</p><p>COMFORT AND FEEL: Extra firm with a controlled, surface-level response that keeps the body lifted and well-aligned.</p><p>SIZE: This full sized mattress is a smart fit for solo sleepers who want the most real estate possible in a guest room or compact bedroom without sharing the surface.</p><p>BEST SLEEP MATCH: Best for back and stomach sleepers who prefer an extra firm feel. The coil system holds the hips level so the lumbar stays supported and the spine stops fighting gravity all night.</p><p>BEST FOR: Ideal for sleepers who need strict postural support, run warm through the night, or have woken up stiff from a mattress that let them sink too deeply.</p><p>CONSTRUCTION SPECIFICATIONS: The Triple-Stranded Pocketed Coil® Technology moves independently under each part of the body, so one partner shifting doesn't wake the other. SurfaceTouch™ Gel Memory Foam is quilted directly into the sleep surface for immediate pressure response the moment you lie down. The Self-Response™ Latex layer ventilates actively, keeping air moving while contouring to the body. Micro Diamond™ Memory Foam pulls heat away steadily through the night. Sleep Climate™ Technology in the cover reinforces that cooling at the surface.</p><p>SETUP AND COMPATIBILITY: Compatible with adjustable bases, platform frames, and box springs. This mattress is delivered flat with white-glove in-home setup available through Mancini's Sleepworld.</p><p>NOT A FIT FOR: Not the right choice for side sleepers who need hip and shoulder cushioning, or for anyone who prefers a cradling, sink-in feel.</p><p>YOUR SLEEP, BACKED BY US</p><p>At Mancini's Sleepworld, every mattress purchase comes with a 120-night comfort guarantee, free next-day delivery, in-home professional setup, and our Best Price Guarantee. Add a premium mattress protector at the time of purchase and you can upgrade your guarantee to a full 365 nights, giving you an entire year to be certain. Come feel this mattress in one of our stores, and let our sleep specialists walk you through every option. Flexible financing is available.</p>\n        </div>\n    \n    \n        <ul class=\"delivery-list d-none d-md-block m-0\">\n            <li class=\"small-text square square__red\">SleepMatch: <span>red</span></li>\n        </ul>\n        <div class=\"delivery-list-content d-none d-md-block\">\n            \n            \n            <iscontentasset aid=\"sleep-match-red\">\n        </div>\n    \n</div>\n\n        <!-- Product Name and Number -->\n        <div class=\"col-sm-6\">\n            <div class=\"row\">\n                <div class=\"col\">\n                    <section>\n                        <h1 class=\"product-name\">Beautyrest Black Series Three Extra Firm Mattress 14.25&quot;</h1>\n                    </section>\n                </div>\n            </div>\n\n            <div class=\"detail-panel\">\n                <!-- Attributes -->\n                <section class=\"attributes\">\n\n                    <div class=\"row\">\n    <div class=\"col\">\n        \n           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value=\"https://www.sleepworld.com/on/demandware.store/Sites-Sleepworld-Site/en_US/Product-Variation?dwvar_SIM-SE3-5M-XF-24-config_size=SplitCalKing&amp;pid=SIM-SE3-5M-XF-24-config&amp;quantity=1\" data-attr-value=\"SplitCalKing\"\n                \n                \n            >\n                Split Cal King\n            </option>\n        \n            <option value=\"https://www.sleepworld.com/on/demandware.store/Sites-Sleepworld-Site/en_US/Product-Variation?dwvar_SIM-SE3-5M-XF-24-config_size=EasternKing&amp;pid=SIM-SE3-5M-XF-24-config&amp;quantity=1\" data-attr-value=\"EasternKing\"\n                \n                \n            >\n                Eastern King\n            </option>\n        \n            <option value=\"https://www.sleepworld.com/on/demandware.store/Sites-Sleepworld-Site/en_US/Product-Variation?dwvar_SIM-SE3-5M-XF-24-config_size=Queen&amp;pid=SIM-SE3-5M-XF-24-config&amp;quantity=1\" data-attr-value=\"Queen\"\n                \n                \n            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class=\"col-4\">\n    <span class=\"availability non-input-label\">\n        Availability:\n    </span>\n</div>\n<div class=\"col-8\">\n    <ul class=\"list-unstyled availability-msg\">\n        <li>\n            \n                \n                    <div>In Stock</div>\n                \n            \n        </li>\n    </ul>\n</div>\n\n\n        </div>\n    </div>\n\n    <div class=\"col\">\n        <div class=\"row align-items-end\">\n            <!-- Quantity -->\n            <div class=\"hidden-xs-down col-4\">\n                \n                    <label for=\"quantity-1\">Quantity</label>\n<select class=\"quantity-select custom-select form-control\" id=\"quantity-1\">\n    \n        <option value=\"1\"\n                data-url=\"/on/demandware.store/Sites-Sleepworld-Site/en_US/Product-Variation?pid=SIM-SE3-4M-XF-24&amp;quantity=1\"\n                selected\n        >\n            1\n        </option>\n    \n        <option value=\"2\"\n                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