{"product_id":"serta-perfect-sleeper-hybrid-standard-firm-available-in-twin-twin-xl-full-queen-king-and-cal-king-sizes","title":"Serta Perfect Sleeper Hybrid Mattress Standard Firm","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 Perfect Sleeper Hybrid Mattress Standard Firm\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003eThe \u003cstrong\u003eSerta Perfect Sleeper Hybrid Mattress Standard Firm\u003c\/strong\u003e features \u003cstrong\u003e3-zoned coil design\u003c\/strong\u003e offering pressure relief and support where you need it. \u003cstrong\u003eCool Twist Gel Memory Foam\u003c\/strong\u003e contours to your body with enhanced airflow and heat dissipation. \u003cstrong\u003e850-coil density system\u003c\/strong\u003e provides cushioning, cradling support that minimizes motion transfer. \u003cstrong\u003eCoolFeel fabric cover\u003c\/strong\u003e creates cool-to-touch surface. \u003cstrong\u003eBestEdge Foam Encasement\u003c\/strong\u003e reduces edge roll-off and extends sleep surface. \u003cstrong\u003eBest for stomach and back sleepers\u003c\/strong\u003e who need firm support. \u003cstrong\u003e100% USA Assembled\u003c\/strong\u003e. Available in Twin, 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 Perfect Sleeper\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComfort Level\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eStandard 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\u003eHybrid (Coils + Memory Foam)\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, Twin XL, Full, Queen, King, Cal King\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCoil System\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e850-Coil Density System\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSupport Zones\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e3-Zoned Coil Design\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eComfort Layers\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCool Twist Gel Memory Foam\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCooling Technology\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eCoolFeel Fabric Cover, Gel Memory Foam\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 Foam Encasement\u003c\/strong\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMotion Control\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003eMinimizes Partner Movement\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\u003eAssembly\u003c\/td\u003e\n\u003ctd\u003e\u003cstrong\u003e100% USA Assembled\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\nStandard Firm Support\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003ch3\u003eStomach and Back Sleeper Ideal\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003estandard firm comfort level is best for stomach and back sleepers\u003c\/strong\u003e who need supportive surface to maintain proper spinal alignment. Stomach sleepers benefit from firmness that prevents hips from sinking too deeply, while back sleepers enjoy the support that maintains natural spine curvature without excessive contouring that could cause misalignment.\u003c\/p\u003e\n\n\u003ch3\u003e3-Zoned Coil Design\u003c\/h3\u003e\n\u003cp\u003eThe celebrated \u003cstrong\u003eSerta Perfect Sleeper is new and improved\u003c\/strong\u003e with focus on consistent, restful sleep for every type of sleeper. The \u003cstrong\u003e3-zoned coil design\u003c\/strong\u003e offers pressure relief and support where you need it, with firmer coils in center third for critical back support and softer coils at head and foot for comfort balance.\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\nCool Twist Gel Memory Foam\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003e\u003cstrong\u003eCooling gel swirled into premium memory foam\u003c\/strong\u003e offers enhanced airflow, heat dissipation, and contouring comfort. The Cool Twist technology in firm mattress provides measured contouring that relieves aches and pains while maintaining supportive surface that prevents the sinking and stuck feeling that stomach and back sleepers should avoid.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003e850-coil density system\u003c\/strong\u003e provides cushioning, cradling support that minimizes motion transfer while the high coil count ensures responsive, firm feel. Topped with \u003cstrong\u003ecool-to-touch cover made with CoolFeel fabric\u003c\/strong\u003e, the mattress provides immediate cooling sensation that works with gel memory foam for comprehensive temperature regulation throughout night.\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\nBestEdge Technology\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003e\u003cstrong\u003eBestEdge Foam Encasement technology\u003c\/strong\u003e provides extra-deep foam rail to help reduce edge roll-off and extend the sleep surface. This reinforced edge support maintains integrity in firm mattresses where perimeter strength matters for sitting on edge and maximizing usable sleeping area without feeling insecure near edges.\u003c\/p\u003e\n\n\u003cp\u003eThe \u003cstrong\u003eextra-deep foam rail\u003c\/strong\u003e works with the 850-coil system to create solid perimeter that prevents sagging and maintains firm support across entire surface including corners. This edge-to-edge support means couples can use full mattress width while the firm construction prevents rolling-together effect common with softer 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\nHybrid Construction Benefits\n\u003c\/div\u003e\n\u003cdiv class=\"accordion-content\"\u003e\n\u003cdiv class=\"content-inner\"\u003e\n\u003cp\u003eWith \u003cstrong\u003ezoned support, contouring memory foams, and cooling cover\u003c\/strong\u003e for comfortable sleep all night long, this mattress is your perfect sleep solution every night. The hybrid construction combines responsive coil support with pressure-relieving memory foam, creating firm mattress that prevents sinking while still cushioning pressure points.\u003c\/p\u003e\n\n\u003cp\u003eThe standard firm feel provides support needed for proper spinal alignment during stomach and back sleeping while the \u003cstrong\u003econtouring memory foams help relieve aches and pains\u003c\/strong\u003e. The \u003cstrong\u003emotion control design minimizes partner movement\u003c\/strong\u003e, with coil system isolating movement better than traditional innerspring while memory foam layers absorb motion for undisturbed sleep.\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. Support with proper foundation or box spring. Allow new mattress to air out for 24-48 hours after delivery.\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 standard firm for stomach sleepers?\u003c\/h3\u003e\n\u003cp\u003eThe \u003cstrong\u003estandard firm support prevents hips from sinking\u003c\/strong\u003e too deeply, maintaining proper spinal alignment during stomach sleeping. Softer mattresses allow hips to dip below shoulders creating back strain. The firm surface keeps spine neutral while Cool Twist memory foam provides measured cushioning for comfort without compromising support.\u003c\/p\u003e\n\n\u003ch3\u003eWhat's difference between standard and enhanced firm?\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003eStandard firm offers balanced firmness\u003c\/strong\u003e suitable for most stomach and back sleepers, while enhanced firm provides extra-firm feel for those preferring maximum support. Standard firm includes slightly more contouring comfort layers while maintaining firm base, making it more universally comfortable than enhanced firm's ultra-firm feel.\u003c\/p\u003e\n\n\u003ch3\u003eWill this be uncomfortable?\u003c\/h3\u003e\n\u003cp\u003eNo, the \u003cstrong\u003econtouring memory foams help relieve aches and pains\u003c\/strong\u003e while maintaining firm support. The 3-zoned coil design and Cool Twist Gel Memory Foam provide cushioning comfort without the sinking that stomach and back sleepers should avoid. The firmness prevents pain by maintaining alignment rather than causing discomfort.\u003c\/p\u003e\n\n\u003ch3\u003eDoes firm mean poor motion isolation?\u003c\/h3\u003e\n\u003cp\u003eNo, the \u003cstrong\u003e850-coil system minimizes motion transfer\u003c\/strong\u003e despite firm feel. The high coil count and individually responsive coils isolate movement while memory foam layers absorb partner motion. You get firm support for proper alignment plus undisturbed sleep even when sleeping with partner who moves frequently.\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":44928361103560,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true},{"title":"FULL","offer_id":44928361136328,"sku":null,"price":1049.0,"currency_code":"USD","in_stock":true},{"title":"QUEEN","offer_id":44928361169096,"sku":null,"price":1079.0,"currency_code":"USD","in_stock":true},{"title":"KING","offer_id":44928361201864,"sku":null,"price":1499.0,"currency_code":"USD","in_stock":true},{"title":"CAL KING","offer_id":44928361234632,"sku":null,"price":1499.0,"currency_code":"USD","in_stock":true},{"title":"TWIN","offer_id":44928361267400,"sku":null,"price":999.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0268\/8519\/3928\/files\/Serta_Perfect_Sleeper_Hybrid_Mattress_Standard_Firm.webp?v=1769756571","url":"https:\/\/casabelladecor.net\/products\/serta-perfect-sleeper-hybrid-standard-firm-available-in-twin-twin-xl-full-queen-king-and-cal-king-sizes","provider":"casabelladecor.net","version":"1.0","type":"link"}