Split King Serta iSeries NXG 3500 Firm Hybrid — Set of 2 Twin XL Mattresses

Serta iSeries NXG 3500 Firm Hybrid Split King — Advanced Support, Cool Comfort & Personalized Sleep

Sleep supported, cool, and refreshed every night with the Serta iSeries NXG 3500 Firm Hybrid Mattress in Split King, available today at Gallery Furniture with Free, Free, Free Same-Day Delivery across the Houston area. This listing includes two Twin XL Firm Hybrid mattresses that pair together to form a Split King — giving you and your partner completely independent comfort zones with zero motion transfer between sides.

⚠️ 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.

Why Choose the NXG 3500 Firm Hybrid Split King:

• Set of 2 Twin XL Firm Hybrid Mattresses: Together they form a Split King — each partner gets their own firm, supportive sleep surface with zero motion transfer between sides.
• Firm Feel for Strong, Stable Support: 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.
• 5-Zone Support Coil System: 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 BestEdge® Foam Encasement delivers enhanced edge-to-edge durability and stability.
• Premium Pressure Relief: High-density memory foam layers contour gently to your shape, easing pressure points without sacrificing firmness — ideal for long-term back and core support.
• CoolFeel™ Cover & Carbon Fiber Memory Foam: 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.
• Motion Control Design: Individually wrapped coils and adaptive foam layers absorb motion to reduce partner disturbance — great for couples and light sleepers.
• Ideal for Back and Stomach Sleepers: The firm support level keeps your spine properly aligned while preventing your hips from sinking too deeply.
• Made in Texas: Proudly crafted domestically with Serta’s trusted reputation for long-lasting support without sagging.
• Adjustable Bases NOT Included: These mattresses are compatible with adjustable bases, but bases are sold separately. Contact Gallery Furniture to add an adjustable base to your order.

Gallery Furniture Guarantee

• ✅ FREE Same Day Delivery in Houston
• ✅ FREE White Glove Delivery
• ✅ FREE Setup & Installation
• ✅ FREE Old Mattress Haul-Off
• ✅ Price Match Guarantee — Gallery Furniture will beat or match any competitor’s pricing

Wake up feeling like yourself again — every single morning.

Perfect for couples who want independent firm comfort zones. Adjustable bases available separately.