Serta iSeries NXG 2500 12.5" Hybrid Medium mattress on a modern wooden bed frame in a styled room. Serta iSeries NXG 2500 Hybrid Medium mattress with breathable geometric cooling cover. Side profile of the Serta iSeries NXG 2500 12.5-inch mattress highlighting the navy blue border. Serta iSeries NXG 2500 Hybrid Medium 12.5 inch mattress designed for balanced support. Top-down view of the moisture-wicking geometric cooling cover on a Serta iSeries NXG 2500 mattress. Internal 5-zone hybrid coil support system of the Serta iSeries NXG 2500 for targeted pressure relief. Close-up of the Serta iSeries NXG 2500 logo and premium quilted cooling fabric on the mattress corner. Elegant bedroom featuring the supportive Serta iSeries NXG 2500 12.5 inch Hybrid Medium mattress. Spinal alignment diagram showing Serta iSeries NXG 2500 hybrid layers supporting a side sleeper. Firmness scale highlighting the Serta iSeries NXG 2500 Hybrid Medium level for balanced comfort. Serta iSeries NXG 2500 Hybrid Medium mattress infographic: Ideal for all sleep positions and support. Detailed layer breakdown of the Serta iSeries NXG 2500 Hybrid Medium mattress with cooling technology. 19.7s info Google AI models may make mistakes, so double-check outputs. Use Arrow Up and Arrow Down to select a turn, Enter to jump to it, and Escape to return to the chat.
Serta iSeries NXG 2500 Hybrid Medium 12.5 Inch Mattress
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Serta iSeries NXG 2500 Hybrid Medium 12.5 Inch Mattress

$2,199.00
$2,799.00
Save $600.00
Brand: Serta
Size
Best for Side, back and combination sleepers
i Size Guide
$2,199.00
Only 17 left in stock
Free Shipping · Ships Within 1–3 Weeks Free Shipping · Ships Within 1–3 Weeks
10-Year Limited Warranty 10-Year Limited Warranty
100-Night Trial 100-Night Trial

To begin with, the Serta iSeries NXG 2500 Hybrid Medium Mattress greets you with a breathable knit cover that helps create a temperature regulated sleep surface the instant you lie down. 

Next, layers of NXG Next Generation Memory Foam blended with Cool Action Gel Memory Foam cradle every curve while drawing heat away, so sleepers describe a balanced “just-right” hug instead of deep sink. Because these comfort layers rest on a Duet Coil-in-Coil Support System, you enjoy balanced support and pressure relief ideal for combination positions—one reason shoppers call it the best 12.5 inch hybrid mattress for side sleepers and back sleepers alike.

Individually wrapped inner-and-outer springs adapt separately, delivering reduced motion transfer for couples when one partner moves. High-density foam rails stabilise the perimeter and increase durability.

Finally, you can Buy Serta iSeries NXG 2500 online through Cloudy Mattress, secure free shipping USA, flexible Affirm financing, and a generous sale discount on this 12.5 inch medium hybrid mattress while inventory lasts.

Medium Hybrid Support

Coils lift the spine while gel foam cushions joints for nightly harmony.

Duet 5-Zone Coil Core

Inner and outer springs give zoned push-back so shoulders relax and hips stay aligned.

Dual-Cooling NXG Foam

Gel-infused memory foam and ventilated structure move heat away for cooler rest.

Motion-Quiet Design

Individually wrapped coils and dense foams absorb partner movement.

Reinforced Foam Edge

High-density encasement prevents roll-off and lets you use the full surface.

Sale + Financing Ease

Serta iSeries NXG mattress discount plus Affirm payments keep budgeting simple.

Key Mattress Benefits

Serta iSeries NXG 2500 Hybrid Medium 12.5 Inch Mattress

6 Layers
Of Cooling
Comfort

Promotes airflow and wicks heat for a fresher first touch.

Next-generation foam contours to curves while whisking warmth away.

Extra layer deepens pressure relief and adds further cooling.

Balances plush comfort and firm lift before the coils.

Inner micro-coil nested inside a taller outer coil delivers adaptive, zoned push-back.

Robust rails reinforce edges for lasting durability and 100 % usable surface

Serta iSeries NXG 2500 Hybrid Medium 12.5 Inch Mattress
Serta iSeries NXG 2500 Hybrid Medium 12.5 Inch Mattress Serta iSeries NXG 2500 Hybrid Medium 12.5 Inch Mattress Serta iSeries NXG 2500 Hybrid Medium 12.5 Inch Mattress Serta iSeries NXG 2500 Hybrid Medium 12.5 Inch Mattress
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Whether its day or night, our dedicated team is always available to answer questions, resolve issues, and guide you through every step.

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Designed for deep comfort and better rest, so you wake up refreshed and ready for the day

Yes. The medium feel pairs adaptive NXG foam with responsive coils, letting sleepers change positions easily while maintaining spinal alignment.

iSeries models combine pocketed coils with NXG foams for hybrid buoyancy and airflow, while iComfort mattresses use all-foam construction for deeper contour and motion absorption.

Gel-infused NXG foam, an open-coil core, and a ventilated cover help move heat away, producing a cooler feel than traditional memory-foam beds.

Yes. Its flexible foam-and-coil architecture bends smoothly on most modern adjustable foundations; slat gaps should be under three inches.

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