The Serta iSeries NXG 3500 Hybrid Firm mattress combines advanced coils and high-quality memory foam for firm, supportive comfort. Designed to promote proper spinal alignment and reduce pressure points, it also features cooling technology and minimal motion transfer for a restful, undisturbed night’s sleep.

• CoolFeel Cover – A cool-to-the-touch CoolFeel Cover provides immediate cooling, directly from the mattress surface, so you sleep and wake refreshed.
• Carbon Fiber Memory Foam – Contours as it cools to relieve pressure and channel heat away from the body for a more restful night’s sleep.
• NXG Memory Foam – A high-density, premium memory foam for deep, contouring pressure relief.
• Q4 Zoned Support System – A 5-zoned coil system offers targeted pressure relief and all-night support for your back and body.
• CertiPUR-US – Certified means your mattress is made from materials without mercury, lead or formaldehyde.
• Designed and Assembled in the USA– Proudly designed, assembled, tested, and enjoyed in the USA

• 10 Year Limited Warranty – You’ll get the comfort you can count on, backed by a 10-year limited warranty.

• Adjustable Base Compatible