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Serta iSeries NXG 3500 Medium Hybrid Mattress

by Serta
Original price $2,399.99 - Original price $4,799.99
Original price $2,399.99
$2,399.99
$2,399.99 - $4,799.99
Current price $2,399.99
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Free Curbside Shipping: 2 Weeks
White Glove Delivery: 3 Weeks
White Glove Delivery + Removal: 3 Weeks

Serta® iSeries® NXG™ Mattress - 3500 Hybrid Medium

Experience the perfect balance of comfort and support with the Serta® iSeries® NXG™ 3500 Hybrid Medium Mattress. This thoughtfully engineered hybrid design delivers immediate cooling comfort, instant pressure relief, and ideal support that adapts seamlessly to your body's natural contours. Featuring advanced NXG Memory Foam technology and a sophisticated 5-zone coil system, this medium-firm mattress creates the optimal sleep environment for all sleep positions. Discover the evolution of sleep technology where innovative cooling meets contouring pressure relief for nights of deeper, more restorative rest at a price that makes sense.

  • 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

PRODUCT SPECIFICATIONS

Comfort & Feel

  • Feel Level: Medium
  • Ideal For: All Sleep Positions
  • Support Level: Targeted Zoned Support
  • Pressure Relief: High-Density NXG™ Memory Foam
  • Cooling Technology: CoolFeel™ Cover & Carbon Fiber Memory Foam

Construction & Materials

  • Mattress Type: Hybrid (Memory Foam + Coils)
  • Cover: CoolFeel™ Cool-to-Touch Cover
  • Top Layer: Carbon Fiber Memory Foam
  • Comfort Layer: High-Density NXG™ Memory Foam
  • Support System: 5-Zone Coil System
  • Edge Support: BestEdge® Support Technology
  • Base Layer: High-Density Foam Core
  • Certification: CertiPUR-US® Certified

Performance Features

  • Motion Control: Designed to minimize partner movement impact
  • Cooling: Immediate cooling with heat redistribution
  • Pressure Relief: Deep contouring pressure relief
  • Support: Targeted zoned support for back and body
  • Edge Support: Edge-to-edge stability and support

Compatibility

  • Traditional Frames: Compatible
  • Box Springs: Compatible
  • Platform Frames: Compatible
  • Slatted Frames: Compatible
  • Bunky Boards: Compatible
  • Adjustable Bases: Compatible (split head base required for split head models)

MATTRESS DIMENSIONS

  • Twin XL

    39"W x 79.5"L x 13.5"H

    Weight: 105.41 lbs

  • Full

    54"W x 74.5"L x 13.5"H

    Weight: 134.01 lbs

  • Queen

    60"W x 79.5"L x 13.5"H

    Weight: 158.34 lbs

  • Split Head Queen

    60"W x 79.5"L x 13.5"H

    Weight: 161.71 lbs

  • King

    76"W x 79.5"L x 13.5"H

    Weight: 196.66 lbs

  • Cal King

    72"W x 83.5"L x 13.5"H

    Weight: 196.19 lbs

  • Split Head King

    76"W x 79.5"L x 13.5"H

    Weight: 166.9 lbs

CARE INSTRUCTIONS

  • To protect your mattress from stains and spills, we highly recommend using a mattress protector. This will also help with the overall health and lifespan of your mattress.
  • We do not recommend applying liquids to the product. Applying liquids may stain the fabric and make the soiled area worse. Moisture or chemicals applied directly to the mattress can cause premature breakdown of the foam and damage the product.
  • We suggest applying baking soda to the soiled area, let stand about 15 minutes, vacuum, and repeat as needed. Air the product out as much as possible.
  • Regular rotation is recommended to ensure even wear and maintain optimal comfort and support.
  • Use a mattress protector to maintain cleanliness and extend the life of your mattress.

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.

10 Year Limited Warranty

Serta® mattresses or foundations used with proper support are protected by a 10 year limited manufacturer’s warranty. Serta products are warrantied against manufacturing defects in workmanship and material (excluding covers and handles, except for handles on iSeries and equivalent level mattresses).

Exclusions

    Comfort Preference
  • Bedding sold “as is”, or floor samples, or bedding purchased from second hand parties, non-retail establishments or received as a promotional item.
  • Bedding height
  • Corner guards
  • Bent perimeter border rods due to moving or bending the sleep set for innerspring models
  • Replacement of another piece in a sleep set unless it is also defective
  • Damage of the mattress or foundation due to misuse or abuse
  • Mattress damage due to an inappropriate foundation or when an incorrect bed frame is used
  • Sheet fit
  • Fabric Stains, soiling, fluid penetration, tears or burns
  • Adjustable foundations (see owner’s manual for details on warranty coverage)
  • Mattress fabric (except as noted in the Warranty Coverage Detail section for an All Foam mattress)
  • Zippered mattress cover damage due to improper care including removal of cover
  • Normal change in softness and recovery time associated with memory foam and latex materials over time. This does not affect the pressure relieving qualities of these materials.
  • Body impressions in the mattress that measure less than ¾" for all smooth top (non-quilted) hybrid mattresses and All Foam model mattresses.
  • Sagging in the mattress that measure less than less than ¾" for all smooth top (non-quilted) hybrid mattresses and All Foam model mattresses.

Term

The warranty coverage runs from the original date of purchase. Replacement of the mattress or foundation does not extend its limited warranty or begin a new limited warranty period. Your warranty period is based on the code printed on your white law label as indicated on the Warranty Code Chart. The duration of any applicable implied warranties, including but not limited to the implied warranties of merchantability and fitness, shall not exceed the term of this limited warranty. (Some states do not allow limitations on how long an implied warranty lasts, so this limitation may not apply to you.) Serta® shall not be liable for incidental or consequential damages that result from the use of your Serta® product. (Some states do not allow the exclusion or limitation of incidental or consequential damages, so this exclusion may not apply to you.) No expressed or implied warranties are extended to persons who purchase the product from anyone other than Serta Simmons Bedding Company or its authorized dealers, and all warranties to such persons, including the implied warranties of merchantability and fitness, are hereby excluded.

Service

If your Serta® mattress or foundation fails due to a manufacturing defect, the exclusive remedy under this warranty will be replacement of the defective product in the U.S., Puerto Rico or U.S. Virgin Islands. If the Serta® product you purchased is discontinued at the time of replacement, a current model of comparable quality and value will be selected. To receive service under the terms of this warranty contact your original Serta® dealer. If your original Serta® dealer is no longer in business or you have moved outside the service area, please contact Serta Customer Service at 1-888-55-SERTA (1-888-557-3782) between the hours of 9am to 5pm EST Monday - Friday. A copy of original bill of sale is needed to determine original date of purchase. Model name label and law label must be provided to identify the bedding and validate this warranty.

Your Rights Under State Law

This warranty gives you specific rights, and you may have other rights, which vary from state to state. This warranty is extended only to the original purchaser from Serta Simmons Bedding Company or its authorized dealers.