{"product_id":"serta-iseries-nxg-3500-hybrid-firm-mattress","title":"Serta iSeries NXG 3500 Hybrid Firm Mattress","description":"\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eFirm feel. Zoned support. Advanced cooling.\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eThe Serta iSeries NXG 3500 Hybrid Firm mattress delivers a more robust, supportive sleep experience with enhanced height and advanced hybrid performance. Designed with a series of benefits for the sleep you want, it provides immediate cooling, deep pressure relief, and reinforced support where your body needs it most. Its firm feel offers consistent stability, while zoned coils help support proper alignment through the back and hips.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eThe added mattress height allows for more advanced comfort layering, while responsive coils improve ease of movement and durability. Cooling materials work together to help regulate temperature, creating a supportive yet comfortable sleep environment ideal for sleepers who want firm support with hybrid responsiveness.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eBest for back and stomach sleepers \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003ewho prefer firm, reinforced support with enhanced responsiveness.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eComfort Level: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eFirm\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eMade in the USA\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e with Global Components\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eMattress Type: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eHybrid Mattress\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eSleep Style: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eBack and Stomach Sleepers\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eAdjustable Base Compatible: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eYes\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eBenefits: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eFirm support, cooling comfort, targeted alignment, responsive feel\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eSustainability:\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eCertiPUR-US® Certified Foams – Tested for low VOC emissions and made without harmful chemicals.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eLong-Lasting Hybrid Construction – Designed to maintain structure and support over time.\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eMade in the USA with Global Components\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eQuilt: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eCoolFeel™ Cover provides an immediately cool sleep surface\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eComfort Layers:\u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eCarbon Fiber Memory Foam channels heat away while contouring\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003eNXG™ Memory Foam delivers premium pressure relief\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eSupport System: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e1000 Series 5-Zone Coil Support System with BestEdge® Support for enhanced alignment and edge stability\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eWarranty: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e10-Year Limited Warranty\u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e \u003c\/span\u003e\u003c\/p\u003e\n\u003cp style=\"margin-bottom: 0in;\" class=\"MsoNormal\"\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eDimensions:\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eTwin XL Size: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e39\" W × 79.5\" L × 13.5\" H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003cb\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003eFull Size: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e54\"\u003cb\u003e \u003c\/b\u003eW × 74.5\" L × 13.5\" H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cb style=\"font-size: 0.875rem;\"\u003e\u003cspan\u003eQueen Size: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e60\" W × 79.5\" L × 13.5\" H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cb style=\"font-size: 0.875rem;\"\u003e\u003cspan\u003eSplit Head Queen Size: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e60\" W × 79.5\" L × 13.5\" H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cb style=\"font-size: 0.875rem;\"\u003e\u003cspan\u003eKing Size: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e76\" W × 79.5\" L × 13.5\" H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cb style=\"font-size: 0.875rem;\"\u003e\u003cspan\u003eSplit Head King Size: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e76\" W × 79.5\" L × 13.5\" H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli class=\"MsoNormal\"\u003e\n\u003cb style=\"font-size: 0.875rem;\"\u003e\u003cspan\u003eCalifornia King Size: \u003c\/span\u003e\u003c\/b\u003e\u003cspan style=\"mso-bidi-font-family: Calibri; mso-bidi-theme-font: minor-latin;\"\u003e72\" W × 83.5\" L × 13.5\" H\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"MsoNormal\"\u003e \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cstrong style=\"font-size: 0.875rem;\"\u003eRecommended Foundation:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"MsoNormal\"\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003e\u003ca href=\"https:\/\/www.citymattress.com\/products\/rio-2-0-adjustable-bed-base?_pos=1\u0026amp;_psq=rio+2.0\u0026amp;_ss=e\u0026amp;_v=1.0\"\u003eRio 2.0 Adjustable Bed Base | City Mattress\u003c\/a\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003ca href=\"https:\/\/www.citymattress.com\/products\/naples-foundation?_pos=1\u0026amp;_psq=serta+naples+founation\u0026amp;_ss=e\u0026amp;_v=1.0\u0026amp;variant=42854937788469\"\u003eSerta Naples Foundation – City Mattress\u003c\/a\u003e\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Serta","offers":[{"title":"Twin XL \/ No Foundation","offer_id":47847472660657,"sku":"ISER3500HY-TXLFM","price":2299.0,"currency_code":"USD","in_stock":true},{"title":"Full \/ No Foundation","offer_id":47847472693425,"sku":"ISER3500HY-FFM","price":2449.0,"currency_code":"USD","in_stock":true},{"title":"Queen \/ No Foundation","offer_id":47847472726193,"sku":"ISER3500HY-QFM","price":2599.0,"currency_code":"USD","in_stock":true},{"title":"Split-Head Queen \/ No Foundation","offer_id":47847472758961,"sku":"ISER3500HY-SPLH-QFM","price":3199.0,"currency_code":"USD","in_stock":true},{"title":"King \/ No Foundation","offer_id":47847472791729,"sku":"ISER3500HY-KFM","price":3299.0,"currency_code":"USD","in_stock":true},{"title":"Split-Head King \/ No Foundation","offer_id":47847472824497,"sku":"ISER3500HY-SPLH-KFM","price":3899.0,"currency_code":"USD","in_stock":true},{"title":"California King \/ No Foundation","offer_id":47847472857265,"sku":"ISER3500HY-CKFM","price":3299.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0523\/9095\/3137\/files\/serta-iseries-nxg-3500-hybrid-firm-mattress-by-serta-9238208.jpg?v=1786733162","url":"https:\/\/city-mattress-stg.myshopify.com\/products\/serta-iseries-nxg-3500-hybrid-firm-mattress","provider":"City Mattress Staging","version":"1.0","type":"link"}