Serta iSeries NXG 3500 Firm Hybrid Mattress (Cooling + 5-Zone Support)

• MATTRESS LAYERS:

  • CoolFeel™ Cover delivers instant cool-to-the-touch comfort from the moment you lie down
  • Carbon Fiber Memory Foam actively pulls heat away from your body for consistent temperature regulation
  • High-Density NXG™ Memory Foam provides superior contouring pressure relief while maintaining firm support
  • 5-Zone Coil Support System with strategically placed firm and plush zones for optimal back and body alignment
  • BestEdge® Support technology delivers lasting edge-to-edge stability and expands your usable sleep surface
  • High-density foam core foundation ensures durable, consistent support for long-lasting comfort
  • Compatible with most bed frames including traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable bases

• MATTRESS FEATURES:

  • Firm feel optimized for stomach and back sleepers requiring enhanced spinal support
  • Advanced cooling system featuring CoolFeel™ Cover and Carbon Fiber Memory Foam
  • NXG™ Memory Foam delivers innovative, high-density pressure relief with firm support
  • 5-Zone Coil System provides targeted support for different body regions
  • BestEdge® Support ensures edge-to-edge stability and maximizes usable surface area
  • Motion control engineering reduces partner movement disturbance
  • CertiPUR-US® Certified foam guarantees safety and quality standards

Immediate Cooling: Advanced Temperature Management

Step into a cooler sleep experience with immediate cooling technology that activates the instant you lie down. The CoolFeel™ Cover provides that refreshing cool-to-the-touch sensation that helps your body transition into sleep mode faster, eliminating the uncomfortable heat buildup that can delay sleep onset and disrupt your rest.

Working in tandem with the cover, Carbon Fiber Memory Foam continuously draws heat away from your body during the night, effectively redistributing warmth and maintaining a balanced sleep temperature. This integrated dual-layer cooling system keeps you comfortably cool from bedtime through morning, transforming hot, restless nights into refreshing, uninterrupted sleep.

Cooling Benefits:

• Cool-to-Touch Surface – Instant refreshing comfort upon contact
• Active Heat Management – Carbon Fiber Memory Foam pulls heat away
• Consistent Temperature Control – Balanced comfort all night long
• Quicker Sleep Onset – Cool surface promotes faster falling asleep
• Improved Sleep Quality – Fewer temperature-related interruptions
• Integrated Cooling Design – Cover and foam work synergistically

Instant Pressure Relief: Firm Support with Contouring Comfort

The 3500 Hybrid Firm incorporates innovative NXG™ Memory Foam—a premium, high-density memory foam that delivers exceptional contouring pressure relief while maintaining the firm support your body needs. This advanced foam technology adapts to your body’s natural contours, distributing weight evenly and eliminating pressure points that can cause discomfort, all while providing the firm foundation essential for proper spinal alignment.

Perfect for stomach and back sleepers who need enhanced support, the NXG Memory Foam contours to your unique shape without allowing excessive sinkage. The firm feel ensures your spine stays properly aligned while pressure-sensitive areas like your shoulders, hips, and lower back receive the relief they need. This creates a sleep surface that supports your body’s natural posture while eliminating the pressure points that can disrupt restorative sleep.

Pressure Relief Features:

• High-Density NXG™ Memory Foam – Advanced contouring technology
• Targeted Pressure Relief – Eliminates pressure points while maintaining firm support
• Adaptive Body Contouring – Responds to your unique body shape
• Firm Support Feel – Ideal cushioning for stomach and back sleepers
• Balanced Weight Distribution – Reduces stress on joints and pressure points
• Personalized Comfort – Tailored support for your sleeping position

Ideal Support: Precision 5-Zone Alignment System

The advanced 5-Zone Coil Support System represents a revolutionary approach to personalized mattress support. This intelligent design features strategically positioned alternating firm and plush zones that work together to support the natural curves of your back and body. Unlike traditional uniform coil systems, this zoned technology recognizes that different body regions require different levels of support for optimal alignment.

Your shoulders and hips benefit from plush zones that allow natural contouring, while your lumbar region and core receive enhanced firm support that maintains proper spinal alignment. This precision-targeted approach ensures every part of your body receives the ideal level of support, promoting healthy sleep posture and reducing the morning stiffness or discomfort that can result from improper alignment.

Zoned Support Benefits:

• 5-Zone Coil System – Strategically alternating firm and plush zones
• Enhanced Spinal Support – Optimized alignment for your back
• Natural Body Contour Support – Accommodates your body’s curves
• BestEdge® Technology – Comprehensive edge-to-edge stability
• Long-Lasting Durability – High-density foam core for consistent support
• Optimal Posture Support – Promotes healthy spinal alignment

Motion Control: Peaceful, Undisturbed Rest

Enjoy the tranquility of undisturbed sleep with the 3500 Hybrid Firm’s sophisticated motion control design. The strategic combination of memory foam layers and pocketed coil system works harmoniously to absorb and minimize the impact of your partner’s movements, ensuring that nighttime activity doesn’t disrupt your restful sleep.

This motion-isolating technology proves especially valuable for couples with varying sleep schedules or different movement patterns. Whether your partner rises early, shifts positions frequently, or gets in and out of bed during the night, you’ll experience uninterrupted sleep thanks to the mattress’s ability to contain and isolate motion within individual sleeping zones.

Motion Control Features:

• Reduced Motion Transfer – Isolates movement to specific zones
• Memory Foam Dampening – Absorbs and cushions movement
• Independent Coil Movement – Pocketed design minimizes transfer
• Couple-Friendly Design – Undisturbed rest for both partners
• Enhanced Sleep Continuity – Reduced wake-ups from movement
• Perfect for Partners – Ideal for couples with different sleep habits

BestEdge® Support: Comprehensive Edge-to-Edge Stability

BestEdge® Support technology guarantees that every square inch of your mattress delivers consistent support and stability, from the center to the very perimeter. This advanced edge support system prevents the sagging and compression common in traditional mattresses, maximizing your usable sleep surface and providing a solid, stable edge for sitting or sleeping near the perimeter.

Whether you prefer sleeping near the edge, need additional space for stretching out, or simply value the confidence of knowing your mattress maintains its shape over time, BestEdge® Support provides lasting edge-to-edge stability. This technology ensures your mattress preserves its support characteristics throughout its entire lifespan, delivering consistent comfort and firmness wherever you choose to sleep.

Edge Support Benefits:

• Comprehensive Edge Stability – Uniform support across entire surface
• Maximum Usable Space – Full mattress utilization
• Prevents Edge Compression – Maintains shape and support over time
• Stable Perimeter Support – Firm edge for comfortable sitting
• Durable Performance – Long-lasting edge support technology
• Versatile Sleep Surface – Comfortable sleep anywhere on the mattress

Responsibly Crafted: Verified Quality & Safety Standards

The iSeries NXG 3500 Hybrid Firm is CertiPUR-US® Certified, ensuring all foam components undergo rigorous testing and verification to be free from harmful chemicals and gasses. This certification confirms that your mattress meets stringent standards for content, emissions, and durability, giving you complete confidence in the materials you sleep on every night.

This dedication to responsible manufacturing means you can sleep soundly knowing your mattress delivers not only exceptional comfort and support but also uncompromising safety for you and your family. The CertiPUR-US® certification reflects a commitment to quality, safety, and environmental responsibility that goes beyond comfort to encompass your complete health and well-being.

Certification Benefits:

• CertiPUR-US® Certified – Verified safety and quality standards
• Chemical-Free Materials – Tested for safety and low emissions
• Comprehensive Testing – Content, emissions, and durability verified
• Family-Safe Materials – Safe for you and your loved ones
• Sustainable Practices – Commitment to environmental responsibility
• Quality Guarantee – Verified manufacturing standards

Additional Information

The Serta® iSeries® NXG™ 3500 Hybrid Firm Mattress embodies the perfect fusion of next-generation sleep innovation and uncompromising support. This firm hybrid design expertly combines immediate cooling comfort with targeted pressure relief and enhanced zoned support, specifically engineered for stomach and back sleepers who require superior spinal alignment without sacrificing comfort or temperature regulation.

With its innovative NXG Memory Foam, advanced cooling technology, and precision-engineered 5-zone coil system, the 3500 Hybrid Firm delivers a sleep experience that supports your body’s natural alignment while eliminating pressure points. The BestEdge® Support ensures lasting edge-to-edge stability, while CertiPUR-US® certification provides complete confidence in the quality and safety of your investment. Protected by a 100-night in-home trial and 10-year limited warranty, this mattress offers the ideal combination of firm support, cooling comfort, and peace of mind in your purchase decision.