The Serta iSeries NXG 3500 Medium Foam Mattress delivers immediate cooling, instant pressure relief, and balanced support for deeper sleep. Features high-density NXG Memory Foam for deep contouring pressure relief with medium feel. CoolFeel Cover provides cool-to-touch surface while Carbon Fiber Memory Foam draws heat away from body. High-density foam core provides durable support surrounded by Ultimate Edge Support for edge-to-edge stability. All-foam construction minimizes motion transfer. Ideal for all sleep positions including side, back, and stomach. Available in Twin XL, Full, Queen, King, and Cal King sizes.
| Collection | Serta iSeries NXG 3500 |
| Comfort Level | Medium |
| Mattress Type | All-Foam (No 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 | High-Density Foam Core |
| Edge Support | Ultimate Edge Support |
| Motion Control | Superior Partner Movement Isolation |
| Best For | All Sleep Positions |
| Brand | Serta |
The high-density NXG Memory Foam provides balanced contouring that adapts to all sleep positions. Medium feel offers enough cushioning for side sleepers' pressure points while maintaining sufficient support for back and stomach sleeping, creating versatile surface for combination sleepers who change positions throughout the night.
The premium foam core provides durable foundation that maintains proper spinal alignment across all sleep positions. Unlike hybrid models with coils, the all-foam construction offers consistent support and superior motion isolation. Ultimate Edge Support maintains stability from edge to edge, preventing roll-off and maximizing sleeping surface.
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. This cooling technology addresses the heat retention common in all-foam mattresses for all-night comfort.
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.
All-foam mattresses use only foam layers without coils, providing superior motion isolation and consistent contouring. Hybrids combine foam with coils for more bounce and breathability. All-foam excels at minimizing partner movement and conforming to body shape, making it ideal for light sleepers.
Not with cooling technology. The Carbon Fiber Memory Foam and CoolFeel Cover actively dissipate heat to prevent the warmth retention common in traditional memory foam. This dual cooling approach maintains comfortable temperature throughout the night despite all-foam construction.
All-foam construction absorbs movement better than hybrid or innerspring mattresses. When partner moves or gets up, the foam layers absorb motion rather than transferring it across the bed. This makes all-foam mattresses excellent for couples where one partner is a light sleeper.
Yes, medium firmness balances support and cushioning to accommodate side, back, and stomach sleeping. Provides enough cushioning for side sleepers' pressure points while maintaining sufficient support for back and stomach positions. Ideal for combination sleepers or couples with different preferences.
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