Queen Size Serta iSeries NXG 3500 Firm Hybrid Mattress

Serta iSeries NXG 3500 Firm Hybrid Mattress — Advanced Support, Cool Comfort & Reliable Performance

Sleep supported, cool, and refreshed every night with the Serta iSeries NXG 3500 Firm Hybrid Mattress, available today at Gallery Furniture with Free, Free, Free Same-Day Delivery across the Houston area. Designed for those who prefer a firm, stable feel with advanced pressure-relief and cooling performance, the NXG 3500 Firm Hybrid delivers precision comfort and targeted support for your back, shoulders, and core — helping you wake up recharged and ready to take on the day.

Key Features

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 Encasementdelivers enhanced edge-to-edge durability and stability, so every inch of your mattress stays comfortable for years to come.

Premium Pressure Relief
High-density, innovative memory foam layers contour gently to your shape, easing pressure points without sacrificing firmness. This combination delivers deep, restorative comfort — ideal for long-term back and core support.

CoolFeel™ Cover & Carbon Fiber Memory Foam
Experience a refreshing sleep surface with a cool-to-the-touch CoolFeel™ Cover that helps regulate body temperature. The Carbon Fiber Memory Foam channels excess heat away from your body 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, light sleepers, or anyone who values uninterrupted rest.

Ideal for Back and Stomach Sleepers
The firm support level keeps your spine properly aligned while preventing your hips from sinking too deeply, making this mattress the right choice for back and stomach sleepers seeking long-lasting comfort and stability.

Why Buy from Gallery Furniture

• Buy Today, Sleep Tonight — Free, Free, Free Same-Day Delivery in Houston and surrounding areas

• Free Haul-Off of your old mattress (haul-off applies to replacement items only)

• Free Professional Set-Up by Gallery Furniture’s trusted in-house delivery team

• Local Service You Can Trust — Gallery Furniture stands behind every sale before, during, and after delivery

Customer Reviews

⭐️⭐️⭐️⭐️⭐️ “The perfect balance of firm and comfortable. My back feels supported all night, and the cooling cover makes a big difference.” – Michael D., Houston, TX

⭐️⭐️⭐️⭐️⭐️ “This firm hybrid from Gallery Furniture has been incredible. Same-day delivery, professional setup, and my best sleep in years.” – Angela R., Katy, TX

FAQs

Q: Is the NXG 3500 Firm Hybrid compatible with adjustable bases?
A: Yes — it pairs perfectly with Gallery Furniture’s Flex or Ease Adjustable Bases for personalized elevation, improved circulation, and zero-gravity positioning.

Q: Will this mattress sleep hot?
A: No — the CoolFeel™ Cover and Carbon Fiber Memory Foam draw heat away from your body for cool, all-night comfort.

Q: Who is this mattress best for?
A: It’s ideal for back and stomach sleepers who need firm, balanced support with excellent spinal alignment.

Q: Is it made in America?
A: Yes — the Serta iSeries NXG 3500 Firm Hybrid is proudly designed and assembled in the USA for lasting quality and reliability.