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

• MATTRESS LAYERS:

  • CoolFeel™ Cover provides instant cool-to-the-touch comfort the moment you lie down
  • Carbon Fiber Memory Foam draws heat away from your body for all-night temperature regulation
  • High-Density NXG™ Memory Foam delivers deep, contouring pressure relief that cradles your body
  • 5-Zone Coil Support System with alternating firm and plush zones for targeted back and body support
  • BestEdge® Support technology ensures lasting edge-to-edge stability and maximizes usable sleep surface
  • High-density foam core provides durable foundational support for years of consistent comfort
  • Compatible with most bed frames including traditional frames, box springs, platform frames, slatted frames, bunky boards, and adjustable bases

• MATTRESS FEATURES:

  • Medium feel ideal for all sleep positions seeking balanced comfort and support
  • Immediate cooling technology with CoolFeel™ Cover and Carbon Fiber Memory Foam
  • NXG™ Memory Foam provides innovative, high-density pressure relief
  • 5-Zone Coil System offers targeted support for different body regions
  • BestEdge® Support maximizes edge-to-edge stability and usable surface area
  • Motion control design minimizes partner movement disturbance
  • CertiPUR-US® Certified foam ensures safety and quality standards

Immediate Cooling: Temperature-Regulated Sleep

Experience the instant relief of immediate cooling technology that begins working the moment you lie down. The CoolFeel™ Cover delivers that satisfying “ahh” sensation with its cool-to-the-touch surface, helping you fall asleep faster by eliminating the initial heat buildup that can disrupt your sleep onset.

Beneath the surface, Carbon Fiber Memory Foam actively draws heat away from your body throughout the night, redistributing warmth and maintaining a consistently comfortable sleep temperature. This dual-layer cooling approach ensures you stay cool from the moment you get into bed until you wake up refreshed, making hot nights a thing of the past.

Cooling Benefits:

• Instant Cool-to-Touch Surface – Immediate comfort upon contact
• Heat Redistribution Technology – Carbon Fiber Memory Foam draws heat away
• All-Night Temperature Control – Consistent comfort throughout sleep
• Faster Sleep Onset – Cool surface helps you fall asleep quicker
• Enhanced Sleep Quality – Reduced temperature-related wake-ups
• Dual-Layer Cooling System – Cover and foam work in harmony

Instant Pressure Relief: Contouring Comfort

The 3500 Hybrid Medium features innovative NXG™ Memory Foam—a high-density, premium memory foam that provides deep, contouring pressure relief exactly where you need it most. This advanced foam technology cradles your body’s natural curves, distributing weight evenly and eliminating pressure points that can cause discomfort and restless sleep.

The medium feel strikes the perfect balance between plush comfort and firm support, making it ideal whether you sleep on your back, side, or stomach. The NXG Memory Foam adapts to your unique shape while maintaining proper spinal alignment, ensuring that every curve of your body receives the perfect amount of cushioning without excessive sinkage. This creates a sleep surface that feels both supportive and comforting, regardless of your preferred sleep position.

Pressure Relief Features:

• High-Density NXG™ Memory Foam – Premium contouring technology
• Deep Pressure Relief – Eliminates pressure points throughout the body
• Body Contouring – Adapts to your unique shape and curves
• Medium Feel – Balanced comfort for all sleep positions
• Even Weight Distribution – Reduces stress on joints and pressure points
• Versatile Support – Ideal for back, side, and stomach sleepers

Ideal Support: 5-Zone Targeted Comfort

The sophisticated 5-Zone Coil Support System represents a breakthrough in personalized mattress support. This innovative design features alternating firm and plush zones strategically positioned to better support the natural curves of your back and body. Unlike uniform coil systems, the zoned approach recognizes that different areas of your body require different levels of support.

Your shoulders and hips receive plush, contouring support that allows them to sink in comfortably, while your lumbar region and core benefit from firmer support that maintains proper spinal alignment. This targeted approach ensures that every part of your body receives the ideal level of support, promoting healthy sleep posture and reducing morning stiffness or discomfort. The medium firmness level makes this system work harmoniously for sleepers of all types.

Zoned Support Benefits:

• 5-Zone Coil System – Alternating firm and plush support zones
• Targeted Back Support – Optimized support for spinal alignment
• Body Curve Adaptation – Supports natural body contours
• BestEdge® Technology – Edge-to-edge stability and support
• Enhanced Durability – High-density foam core for lasting support
• Optimal Sleep Posture – Promotes healthy spinal alignment

Motion Control: Undisturbed Sleep

Experience the peace of undisturbed sleep with the 3500 Hybrid Medium’s advanced motion control design. The combination of memory foam layers and pocketed coil system works together to minimize the impact of your partner’s movements, ensuring that tossing, turning, or getting in and out of bed doesn’t disrupt your rest.

This motion-isolating technology is particularly valuable for couples with different sleep schedules or movement patterns. Whether your partner gets up early or moves frequently during the night, you’ll enjoy uninterrupted sleep thanks to the mattress’s ability to absorb and contain motion within each sleeping zone. The medium firmness level provides responsive support while still effectively isolating movement.

Motion Control Features:

• Minimal Motion Transfer – Isolates movement to individual zones
• Memory Foam Absorption – Cushions and contains movement
• Pocketed Coil Design – Independent coil movement reduces transfer
• Partner-Friendly Sleep – Undisturbed rest for both sleepers
• Enhanced Sleep Continuity – Fewer wake-ups from movement
• Ideal for Couples – Perfect for partners with different sleep patterns

BestEdge® Support: Maximum Usable Surface

The BestEdge® Support technology ensures that every inch of your mattress provides consistent support and stability, from the center to the very edges. This innovative edge support system prevents the sagging and compression that can occur in traditional mattresses, maximizing your usable sleep surface and providing a firm, stable edge for sitting or sleeping near the perimeter.

Whether you’re someone who sleeps near the edge, needs extra space for stretching out, or simply appreciates the confidence of knowing your mattress won’t sag over time, BestEdge® Support delivers lasting edge-to-edge stability. This technology ensures that your mattress maintains its shape and support characteristics throughout its entire lifespan, providing consistent comfort wherever you choose to sleep.

Edge Support Benefits:

• Edge-to-Edge Stability – Consistent support across entire surface
• Maximum Usable Surface – Full mattress utilization
• Prevents Edge Sagging – Maintains shape and support over time
• Stable Sitting Edge – Firm support for edge sitting
• Long-Lasting Performance – Durable edge support technology
• Enhanced Versatility – Comfortable sleep anywhere on the mattress

Responsibly Crafted: Certified Quality & Safety

The iSeries NXG 3500 Hybrid Medium is CertiPUR-US® Certified, meaning all foam components have been rigorously tested and verified to be free from harmful chemicals and gasses. This certification ensures that your mattress meets strict standards for content, emissions, and durability, providing you with peace of mind about the materials you’re sleeping on every night.

This commitment to responsible manufacturing means you can rest easy knowing that your mattress is not only comfortable and supportive but also safe for you and your family. The CertiPUR-US® certification represents a dedication to quality, safety, and environmental responsibility that extends beyond comfort to encompass your overall health and well-being.

Certification Benefits:

• CertiPUR-US® Certified – Verified safety and quality standards
• Free from Harmful Chemicals – Tested for safety and emissions
• Rigorous Testing – Content, emissions, and durability verified
• Health-Conscious Materials – Safe for you and your family
• Environmental Responsibility – Commitment to sustainable practices
• Quality Assurance – Verified manufacturing standards

Additional Information

The Serta® iSeries® NXG™ 3500 Hybrid Medium Mattress represents the perfect balance of next-generation sleep technology, combining immediate cooling comfort with instant pressure relief and ideal support. This medium-firm hybrid design is thoughtfully engineered for all sleep positions, delivering versatile comfort that adapts to your body’s unique needs without compromising on support or temperature regulation.

With its innovative NXG Memory Foam, advanced cooling technology, and sophisticated 5-zone coil system, the 3500 Hybrid Medium delivers a sleep experience that works harmoniously for back, side, and stomach sleepers alike. The BestEdge® Support ensures lasting edge-to-edge stability, while CertiPUR-US® certification provides peace of mind about the quality and safety of your investment. Backed by a 100-night in-home trial and 10-year limited warranty, this mattress offers exceptional value with the perfect combination of comfort, support, and confidence in your purchase decision.