{"product_id":"serta-iseries-nxg-mattress-1500-firm-foam-available-in-twin-xl-full-queen-king-and-cal-king-sizes","title":"Serta iSeries NXG Mattress 1500 Firm Foam ~ Available in Twin XL, Full, Queen, King and Cal King Sizes","description":"\u003cstyle\u003e\n.accordion-container{max-width:1200px;margin:0 auto;font-family:Montserrat,sans-serif}\n.accordion-item{margin-bottom:15px;border:1px solid #e0e0e0;border-radius:8px;overflow:hidden;background:#fff}\n.accordion-header{background:#fff;color:#000;padding:18px 24px;cursor:pointer;font-size:18px;font-weight:600;display:flex;justify-content:space-between;align-items:center;transition:all .3s ease;border-bottom:1px solid #e0e0e0}\n.accordion-header:hover{background:#f8f8f8}\n.accordion-header::after{content:'+';font-size:24px;font-weight:300;transition:transform .3s ease}\n.accordion-header.active{background:#f5f5f5}\n.accordion-header.active::after{transform:rotate(45deg)}\n.accordion-content{max-height:0;overflow:hidden;transition:max-height .3s ease}\n.accordion-content.active{max-height:5000px}\n.content-inner{padding:24px;line-height:1.8;color:#333}\n.content-inner h3{color:#000;margin-top:24px;margin-bottom:12px;font-size:20px;font-weight:600}\n.content-inner p{margin-bottom:16px}\n.content-inner ul{margin:16px 0;padding-left:24px}\n.content-inner ul li{margin-bottom:8px}\n.specs-table{width:100%;border-collapse:collapse;margin:20px 0}\n.specs-table td{padding:12px;border-bottom:1px solid #e0e0e0}\n.specs-table td:first-child{font-weight:600;width:40%}\n.cta-box{background:transparent;color:#000;padding:30px;border:2px solid #000;border-radius:8px;margin-top:30px;text-align:center}\n.cta-box h3{color:#000;margin:0 0 10px;font-size:22px}\n.cta-box p{margin:0 0 15px;color:#000}\n.cta-box a{color:#000;text-decoration:underline;font-weight:600}\n\u003c\/style\u003e\n\n\u003cdiv class=\"accordion-container\"\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nSerta iSeries NXG 1500 Luxury Firm Foam Mattress\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSerta iSeries NXG 1500 Luxury Firm Foam Mattress\u003c\/strong\u003e delivers immediate cooling, instant pressure relief, and firm support for deeper sleep. Features \u003cstrong\u003ehigh-density NXG Memory Foam\u003c\/strong\u003e for contouring pressure relief with luxury firm feel. \u003cstrong\u003eCoolFeel Cover\u003c\/strong\u003e provides cool-to-touch surface while \u003cstrong\u003eCarbon Fiber Memory Foam\u003c\/strong\u003e draws heat away from body. \u003cstrong\u003eHigh-density foam core\u003c\/strong\u003e provides durable firm support surrounded by \u003cstrong\u003eUltimate Edge Support\u003c\/strong\u003e for edge-to-edge stability. All-foam construction delivers superior motion isolation. \u003cstrong\u003eGreat for stomach and back sleepers\u003c\/strong\u003e. Available in Twin XL, Full, Queen, King, and Cal King sizes.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nSpecifications\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003ctable class=\"specs-table\"\u003e\n\u003ctr\u003e\n\u003ctd\u003eCollection\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSerta iSeries NXG 1500\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComfort Level\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eLuxury Firm\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMattress Type\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eAll-Foam (No Coils)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eAvailable Sizes\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eTwin XL, Full, Queen, King, Cal King\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eFoam Technology\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eNXG Memory Foam (High-Density)\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling Layers\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCoolFeel Cover, Carbon Fiber Memory Foam\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport System\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eHigh-Density Foam Core\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEdge Support\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eUltimate Edge Support\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotion Control\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSuperior Partner Movement Isolation\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBest For\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eStomach and Back Sleepers\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eSerta\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nPressure Relief \u0026amp; Support\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003ch3\u003eNXG Memory Foam Technology\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003ehigh-density NXG Memory Foam\u003c\/strong\u003e provides contouring pressure relief while maintaining luxury firm support foundation. This innovative premium foam responds to body weight without excessive sinking, delivering pressure relief at key contact points while keeping spine properly aligned on firm surface ideal for stomach and back sleeping.\u003c\/p\u003e\n\n\u003ch3\u003eHigh-Density Foam Core\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003epremium foam core\u003c\/strong\u003e provides durable firm foundation that prevents lower back arching for stomach sleepers and maintains proper spinal alignment for back sleepers. Unlike hybrid models with coils, the all-foam construction offers consistent firm support and superior motion isolation. \u003cstrong\u003eUltimate Edge Support\u003c\/strong\u003e maintains stability from edge to edge, preventing roll-off and maximizing sleeping surface.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nCooling Technology\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eCoolFeel Cover\u003c\/strong\u003e provides cool-to-touch surface that delivers immediate cooling sensation when you lie down, helping you fall asleep faster. The fabric dissipates body heat for comfortable initial contact with mattress surface.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eCarbon Fiber Memory Foam layer\u003c\/strong\u003e actively draws heat away from body throughout the night. Carbon fiber's thermal conductivity pulls warmth from sleep surface and disperses it, maintaining comfortable temperature. The firm surface prevents deep sinking that can trap heat, working with cooling layers to address heat retention common in all-foam mattresses.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nCare Instructions\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003eUse mattress protector to guard against stains. Rotate head-to-foot every three to six months for even wear. Avoid jumping or standing on mattress. Do not fold or bend. Allow new mattress to air out for 24-48 hours after unboxing.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"accordion-item\"\u003e\n\u003cdiv class=\"accordion-header\" onclick=\"toggleAccordion(this)\"\u003e\nFrequently Asked Questions\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003ch3\u003eWhat is luxury firm?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eLuxury firm provides firm support\u003c\/strong\u003e with thin comfort layer that softens initial contact without compromising firmness. More firm than medium but less rigid than extra firm, offering firm foundation ideal for stomach and back sleepers while maintaining premium feel and comfort.\u003c\/p\u003e\n\n\u003ch3\u003eHow does all-foam differ from hybrid?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eAll-foam offers superior motion isolation\u003c\/strong\u003e and consistent firm support without coils. While hybrid 1500 provides some bounce from coils, this all-foam version delivers pure memory foam feel with complete movement absorption. Ideal for light sleepers sensitive to partner movement who prefer classic firm memory foam experience.\u003c\/p\u003e\n\n\u003ch3\u003eWhy firm for stomach sleepers?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eFirm support prevents lower back arching\u003c\/strong\u003e that occurs when stomach sleepers sink too deeply into soft mattress. The luxury firm foundation keeps hips from dropping below shoulders, maintaining neutral spine alignment. This prevents morning back pain and supports proper sleeping posture.\u003c\/p\u003e\n\n\u003ch3\u003eDoes all-foam sleep hot?\u003c\/h3\u003e\n\u003cp\u003eNot with cooling technology. The \u003cstrong\u003eCarbon Fiber Memory Foam and CoolFeel Cover\u003c\/strong\u003e actively dissipate heat to prevent warmth retention common in traditional all-foam mattresses. The firm surface also prevents deep sinking that traps heat, maintaining comfortable temperature throughout the night.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\n\u003cdiv class=\"cta-box\"\u003e\n\u003ch3\u003eGet 20% Off + Free Delivery\u003c\/h3\u003e\n\u003cp\u003eQuestions about this product? Our specialists are here to help.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"tel:8552233267\"\u003eCall\/Text: 855.223.3267\u003c\/a\u003e | \u003ca href=\"mailto:cs@casabelladecor.net\"\u003eEmail: cs@casabelladecor.net\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003c\/div\u003e\n\n\u003cscript\u003e\nfunction toggleAccordion(header) {\n  var content = header.nextElementSibling;\n  var isActive = header.classList.contains('active');\n  var allHeaders = document.querySelectorAll('.accordion-header');\n  var allContents = document.querySelectorAll('.accordion-content');\n  \n  for(var i = 0; i \u003c allHeaders.length; i++) {\n    allHeaders[i].classList.remove('active');\n  }\n  for(var i = 0; i \u003c allContents.length; i++) {\n    allContents[i].classList.remove('active');\n  }\n  \n  if(!isActive) {\n    header.classList.add('active');\n    content.classList.add('active');\n  }\n}\n\u003c\/script\u003e","brand":"Serta","offers":[{"title":"TWIN XL","offer_id":44912514400456,"sku":null,"price":1699.0,"currency_code":"USD","in_stock":true},{"title":"FULL","offer_id":44912515252424,"sku":null,"price":1849.0,"currency_code":"USD","in_stock":true},{"title":"QUEEN","offer_id":44912515285192,"sku":null,"price":1999.0,"currency_code":"USD","in_stock":true},{"title":"KING","offer_id":44912515317960,"sku":null,"price":2599.0,"currency_code":"USD","in_stock":true},{"title":"CAL KING","offer_id":44912515350728,"sku":null,"price":2599.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8519\/3928\/files\/IMG_0346_9a01de27-75e9-4583-af90-dce742c839d6.webp?v=1769274994","url":"https:\/\/casabelladecor.net\/products\/serta-iseries-nxg-mattress-1500-firm-foam-available-in-twin-xl-full-queen-king-and-cal-king-sizes","provider":"casabelladecor.net","version":"1.0","type":"link"}