{"product_id":"split-king-serta-iseries-nxg-3500-firm-hybrid-2-twin-xl-mattresses","title":"Split King Serta iSeries NXG 3500 Firm Hybrid — Set of 2 Twin XL Mattresses","description":"\u003ch2\u003e\u003cstrong\u003eSerta iSeries NXG 3500 Firm Hybrid Split King — Advanced Support, Cool Comfort \u0026amp; Personalized Sleep\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eSleep supported, cool, and refreshed every night with the \u003cstrong\u003eSerta iSeries NXG 3500 Firm Hybrid Mattress in Split King\u003c\/strong\u003e, available \u003cstrong\u003etoday at Gallery Furniture\u003c\/strong\u003e with \u003cem\u003eFree, Free, Free Same-Day Delivery\u003c\/em\u003e across the Houston area. This listing includes \u003cstrong\u003etwo Twin XL Firm Hybrid mattresses\u003c\/strong\u003e that pair together to form a Split King — giving you and your partner completely independent comfort zones with zero motion transfer between sides.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e⚠️ Please Note: This listing is for the two Twin XL mattresses only. Adjustable bases are NOT included and are sold separately. Contact Gallery Furniture to add adjustable bases to your order.\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch3\u003eWhy Choose the NXG 3500 Firm Hybrid Split King:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSet of 2 Twin XL Firm Hybrid Mattresses:\u003c\/strong\u003e Together they form a Split King — each partner gets their own firm, supportive sleep surface with zero motion transfer between sides.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFirm Feel for Strong, Stable Support:\u003c\/strong\u003e Built for those who love a supportive sleep surface, this firm hybrid combines responsive coils with premium memory foam to create the perfect balance of strength and comfort.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e5-Zone Support Coil System:\u003c\/strong\u003e Serta’s exclusive 5-Zone Support System provides targeted reinforcement for every area of your body — giving your back and hips the extra support they need while ensuring proper spinal alignment. The \u003cstrong\u003eBestEdge® Foam Encasement\u003c\/strong\u003e delivers enhanced edge-to-edge durability and stability.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePremium Pressure Relief:\u003c\/strong\u003e High-density memory foam layers contour gently to your shape, easing pressure points without sacrificing firmness — ideal for long-term back and core support.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCoolFeel™ Cover \u0026amp; Carbon Fiber Memory Foam:\u003c\/strong\u003e A cool-to-the-touch CoolFeel™ Cover helps regulate body temperature, while Carbon Fiber Memory Foam channels excess heat away for a cooler, more breathable night’s sleep — a must-have in Houston’s warm climate.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMotion Control Design:\u003c\/strong\u003e Individually wrapped coils and adaptive foam layers absorb motion to reduce partner disturbance — great for couples and light sleepers.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eIdeal for Back and Stomach Sleepers:\u003c\/strong\u003e The firm support level keeps your spine properly aligned while preventing your hips from sinking too deeply.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMade in Texas:\u003c\/strong\u003e Proudly crafted domestically with Serta’s trusted reputation for long-lasting support without sagging.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eAdjustable Bases NOT Included:\u003c\/strong\u003e These mattresses are compatible with adjustable bases, but bases are sold separately. Contact Gallery Furniture to add an adjustable base to your order.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr\u003e\n\u003ch3\u003eGallery Furniture Guarantee\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e✅ FREE Same Day Delivery in Houston\u003c\/li\u003e\n\u003cli\u003e✅ FREE White Glove Delivery\u003c\/li\u003e\n\u003cli\u003e✅ FREE Setup \u0026amp; Installation\u003c\/li\u003e\n\u003cli\u003e✅ FREE Old Mattress Haul-Off\u003c\/li\u003e\n\u003cli\u003e✅ Price Match Guarantee — Gallery Furniture will beat or match any competitor’s pricing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eWake up feeling like yourself again — every single morning.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003ePerfect for couples who want independent firm comfort zones. Adjustable bases available separately.\u003c\/em\u003e\u003c\/p\u003e","brand":"Serta NXG","offers":[{"title":"Default Title","offer_id":51987658834241,"sku":"668400333","price":2759.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0861\/5664\/0577\/files\/Serta_iSeries_NXG_3500_MD_1.png?v=1759367561","url":"https:\/\/www.galleryfurniture.com\/products\/split-king-serta-iseries-nxg-3500-firm-hybrid-2-twin-xl-mattresses","provider":"Gallery Furniture","version":"1.0","type":"link"}