{"product_id":"serta-iseries-nxg-mattress-3500-hybrid-medium-available-in-twin-xl-full-queen-king-and-cal-king-sizes","title":"Serta iSeries NXG Mattress 3500 Hybrid Medium ~ 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 3500 Hybrid Medium Mattress\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSerta iSeries NXG 3500 Hybrid Medium Mattress\u003c\/strong\u003e delivers immediate cooling, instant pressure relief, and balanced support for deeper sleep. Features \u003cstrong\u003ehigh-density NXG Memory Foam\u003c\/strong\u003e for deep contouring pressure relief with medium 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\u003e5-zone coil system\u003c\/strong\u003e with alternating firm and plush areas supports back and body curves. \u003cstrong\u003eBestEdge Support\u003c\/strong\u003e provides edge-to-edge stability. \u003cstrong\u003eIdeal for all sleep positions\u003c\/strong\u003e including side, back, and stomach. 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 3500\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComfort Level\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMedium\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMattress Type\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eHybrid (Memory Foam + 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\u003e5-Zone Coil System\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eEdge Support\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eBestEdge Support Technology\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotion Control\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003ePartner 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\u003eAll Sleep Positions\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 balanced contouring that adapts to all sleep positions. Medium feel offers enough cushioning for side sleepers' pressure points while maintaining sufficient support for back and stomach sleeping, creating versatile surface for combination sleepers who change positions.\u003c\/p\u003e\n\n\u003ch3\u003e5-Zone Coil System\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003e5-zone hybrid coil system\u003c\/strong\u003e features alternating firm and plush areas that accommodate different sleep positions. Provides support beneath lumbar region for back sleepers, cushioning for side sleepers' shoulders and hips, and prevents excessive sinking for stomach sleepers. \u003cstrong\u003eBestEdge Support\u003c\/strong\u003e maintains stability from edge to edge, 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. This dual cooling approach combines immediate surface cooling with sustained heat dissipation for all-night comfort regardless of sleep position.\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\u003eWhy medium for all positions?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMedium firmness balances support and cushioning\u003c\/strong\u003e to accommodate side, back, and stomach sleeping. Provides enough cushioning for side sleepers' pressure points while maintaining sufficient support for back and stomach positions. Ideal for combination sleepers who change positions throughout the night.\u003c\/p\u003e\n\n\u003ch3\u003eHow does medium differ from plush or firm?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eMedium offers middle-ground versatility\u003c\/strong\u003e. Plush (2500) provides more cushioning specifically for side sleepers while firm provides maximum support for stomach sleepers. Medium balances both, making it best choice for combination sleepers or couples with different preferences who need one mattress that works for everyone.\u003c\/p\u003e\n\n\u003ch3\u003eIs this good for couples?\u003c\/h3\u003e\n\u003cp\u003eYes, the \u003cstrong\u003emedium feel accommodates different sleep preferences\u003c\/strong\u003e and positions. Motion control design minimizes partner movement impact while balanced firmness works for various body types and sleeping styles. NXG Memory Foam and 5-zone coils provide individualized support, making it excellent for couples with different preferences.\u003c\/p\u003e\n\n\u003ch3\u003eWhat if I change positions at night?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003emedium feel adapts as you move\u003c\/strong\u003e between positions. NXG Memory Foam responds to your body in each position while 5-zone coils provide targeted support whether you're on your side, back, or stomach. This versatility makes medium ideal for combination sleepers who don't stay in one position.\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":44912540090568,"sku":null,"price":2399.0,"currency_code":"USD","in_stock":true},{"title":"FULL","offer_id":44912540123336,"sku":null,"price":2549.0,"currency_code":"USD","in_stock":true},{"title":"QUEEN","offer_id":44912540156104,"sku":null,"price":2699.0,"currency_code":"USD","in_stock":true},{"title":"SPLIT QUEEN","offer_id":44912540188872,"sku":null,"price":3299.0,"currency_code":"USD","in_stock":true},{"title":"KING","offer_id":44912540221640,"sku":null,"price":3299.0,"currency_code":"USD","in_stock":true},{"title":"SPLIT KING","offer_id":44912540254408,"sku":null,"price":3899.0,"currency_code":"USD","in_stock":true},{"title":"CAL KING","offer_id":44912540287176,"sku":null,"price":3299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8519\/3928\/files\/Serta_iSeries_NXG_3500_Hybrid_Medium_Mattress_All_Positions.webp?v=1769358912","url":"https:\/\/casabelladecor.net\/products\/serta-iseries-nxg-mattress-3500-hybrid-medium-available-in-twin-xl-full-queen-king-and-cal-king-sizes","provider":"casabelladecor.net","version":"1.0","type":"link"}