Serta iSeries NXG Mattress 3500 Hybrid Firm ~ Available in Twin XL, Full, Queen, King and Cal King Sizes

Name: Serta iSeries NXG Mattress 3500 Hybrid Firm ~ Available in Twin XL, Full, Queen, King and Cal King Sizes
Brand: Serta
Price: 2399.0 USD
Availability: InStock
Rating: 5 (1 reviews)

$2,399.00

Shipping calculated at checkout.

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Serta iSeries NXG 3500 Hybrid Firm Mattress

The Serta iSeries NXG 3500 Hybrid Firm Mattress delivers immediate cooling, instant pressure relief, and firm support for deeper sleep. Features high-density NXG Memory Foam for deep contouring pressure relief with firm foundation. CoolFeel Cover provides cool-to-touch surface while Carbon Fiber Memory Foam draws heat away from body. 5-zone coil system with alternating firm and plush areas supports back and body curves. BestEdge Support provides edge-to-edge stability. Great for stomach and back sleepers. Available in Twin XL, Full, Queen, King, and Cal King sizes.

Specifications

Collection	Serta iSeries NXG 3500
Comfort Level	Firm
Mattress Type	Hybrid (Memory Foam + Coils)
Available Sizes	Twin XL, Full, Queen, King, Cal King
Foam Technology	NXG Memory Foam (High-Density)
Cooling Layers	CoolFeel Cover, Carbon Fiber Memory Foam
Support System	5-Zone Coil System
Edge Support	BestEdge Support Technology
Motion Control	Partner Movement Isolation
Best For	Stomach and Back Sleepers
Brand	Serta

Pressure Relief & Support

NXG Memory Foam Technology

The high-density NXG Memory Foam provides contouring pressure relief while maintaining firm support foundation. This innovative premium foam responds to body weight without excessive sinking, delivering pressure relief at key contact points while keeping spine properly aligned on firm surface.

5-Zone Coil System

The 5-zone hybrid coil system features alternating firm and plush areas that prevent lower back arching for stomach sleepers and maintain spinal alignment for back sleepers. Firmer coils beneath lumbar region provide strong support while coils adjust to body curves. BestEdge Support maintains stability from edge to edge, maximizing sleeping surface.

Cooling Technology

The CoolFeel Cover provides cool-to-touch surface that delivers immediate cooling sensation when you lie down, helping you fall asleep faster. The fabric dissipates body heat for comfortable initial contact with mattress surface.

The Carbon Fiber Memory Foam layer actively draws heat away from body throughout the night. Carbon fiber's thermal conductivity pulls warmth from sleep surface and disperses it, maintaining comfortable temperature. The firm surface prevents deep sinking that can trap heat, working with cooling layers for all-night comfort.

Care Instructions

Use mattress protector to guard against stains. Rotate head-to-foot every three to six months for even wear. Avoid jumping or standing on mattress. Do not fold or bend. Allow new mattress to air out for 24-48 hours after unboxing.

Frequently Asked Questions

Why firm for stomach sleepers?

Firm support prevents lower back arching that occurs when stomach sleepers sink too deeply into soft mattress. The firm foundation keeps hips from dropping below shoulders, maintaining neutral spine alignment. This prevents morning back pain and supports proper sleeping posture for stomach sleepers.

How does this differ from 2500?

The 3500 provides firmer support while 2500 offers plush feel. Both feature same NXG Memory Foam, CoolFeel Cover, and 5-zone coils. The 3500 is optimized for stomach and back sleepers who need firm support while 2500 suits side sleepers preferring softer cushioning.

Does firm mean uncomfortable?

No, the NXG Memory Foam provides pressure relief on firm foundation. Firm doesn't mean hard; it means supportive surface that prevents excessive sinking. The memory foam layers contour to body while coil system maintains firm support, creating comfortable firm feel that's supportive not rigid.

Will I feel partner movement?

The mattress minimizes motion transfer despite firm feel. Memory foam layers absorb movement while individually wrapped coils move independently. When partner shifts or gets up, you experience less disturbance compared to traditional innerspring mattresses, even with firmer support level.