Serta iComfort Iona 13 inch medium tight top mattress on a wooden bed frame in a modern blue bedroom.

Serta iComfort Iona medium tight top 13" mattress with 5-zone support and cooling memory foam.

Front view of the 13 inch Serta iComfort Iona medium mattress featuring an advanced cooling cover.

Top-down view of the cooling pattern on the Serta iComfort Iona medium tight top memory foam mattress.

Close-up of the Serta iComfort Iona branding on a navy blue textured mattress side panel.

Medium firmness scale for Serta iComfort Iona 13" mattress, ideal for all sleep positions.

Diagram of Serta Iona medium mattress layers including graphite-infused memory foam for pressure relief.

Exploded view of Serta iComfort Iona 13 inch mattress layers with 5-zone targeted support system.

Serta iComfort Iona Medium Tight Top 13 Inch Mattress

Plush Medium Firm Pillow top Memory foam Hybrid

Serta iComfort Iona Medium Tight Top 13 Inch Mattress

$1,399.00

$1,799.00

Save $400.00

Brand:

Serta

i Size Guide

$1,399.00

Only 17 left in stock

Free USA Wide Delivery

10 Year Warranty

Advanced Technology

The Serta iComfort Iona Medium Tight Top 13 Inch Mattress is designed for sleepers who want a luxurious, deeper profile with the balanced feel of a Medium mattress. To begin with, it brings together a cool-to-the-touch cover with multiple memory foam layers for restorative, rejuvenating sleep night after night.

Next, the feel sits squarely in the middle of the comfort scale. As a medium feel tight top mattress, the Iona Medium is built to suit side, back, stomach, and combination sleepers, making it a strong contender for the best 13-inch mattress for back and side sleepers.

Moreover, the cooling system is engineered into every layer. A graphite-infused memory foam layer combined with gel-infused EverCool® Fuze foam and a Cold Touch breathable cover creates a cooling medium firm mattress for pressure relief that helps you stay comfortable through the night.

Because of this layered approach, the bed delivers balanced support and contouring, targeted pressure point relief, and advanced heat regulation within a generous luxury 13-inch profile feel. The result is consistent comfort whether you sleep on your side, back, or stomach.

Finally, this 13-inch medium memory foam mattress is backed by a 10-year Serta limited warranty and built to CertiPUR-US certified foam standards. Cloudy Mattress is an authorized Serta mattress dealer, financing available now through Affirm, and you can add an adjustable bed, a box spring with metal foundation, or old mattress removal at checkout. Customers ready to buy Serta iComfort Iona online can shop with confidence here.

Medium feel for every sleep position

This 13-inch medium memory foam mattress suits side, back, stomach, and combination sleepers who want comfort without sinking too deeply.

Luxurious 13-inch profile

The luxury 13-inch profile feels stacks multiple comfort foams over a substantial support base, giving the mattress a premium, hotel-quality presence.

Cooling-focused construction

A graphite-infused memory foam layer paired with CoolFeel™ Fabric delivers advanced heat regulation, drawing warmth away from the body as you sleep.

Gel-infused pressure relief

EverCool Fuze Gel Memory Foam combines cooling gel with premium memory foam for a pressure-relieving embrace that contours to the body.

Zoned support for spinal alignment

Serta's 5 ZoneResponse™ Design provides head-to-toe support across five engineered zones, supporting balanced support and contouring through the night.

Quiet, undisturbed nights

All-foam construction provides motion isolation for undisturbed sleep, so partner movement is dampened rather than transferred across the bed.

Adjustable base compatible

This mattress is an adjustable base compatible, so you can pair it with a power foundation for elevated head or foot positions.

Certified, trusted materials

Built with CertiPUR-US certified foam and proudly made in the USA, the Iona Medium sits within the established Serta iComfort Collection.

Key Mattress Benefits

5 Layers
Of Cooling
Comfort

The top surface uses cool-to-the-touch fabric designed to feel refreshing the moment you lie down. This Cold Touch breathable cover helps regulate surface temperature so heat does not build up across the night.

One inch of premium memory foam infused with graphite sits just below the cover. Graphite is naturally conductive, which is why this layer supports advanced heat regulation by redistributing body heat away from the sleeper.

This pressure-relief layer contours and cradles around shoulders, hips, and the lower back. It is the layer most responsible for the bed's targeted pressure point relief and balanced support and contouring.

A dynamic combination of cooling gel and premium memory foam adds a pressure-relieving embrace with added breathability. This EverCool Fuze Gel Memory Foam layer reinforces the bed's overall cooling system while deepening the contouring feel.

The foundation layer establishes the 13-inch mattress thickness and contains five ergonomically engineered zones with alternating firmness levels. This high-density foam support core delivers enhanced support beneath the lower back and upper thighs while keeping shoulders and hips cushioned, anchoring this all-foam mattress construction.

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HAVE QUESTIONS?

WE'VE GOT ANSWERS

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

Yes. While the Iona Medium is built for all sleep positions, the combination of Perfect Conform™ Memory Foam and EverCool® Fuze Gel Memory Foam cradles the shoulders and hips, which is exactly what side sleepers need for proper spinal alignment.

The Iona does not strictly require a box spring. It performs well on a sturdy adjustable base, a platform frame with closely spaced slats, or a traditional foundation. You can also add a box spring with a metal foundation at checkout on Cloudy Mattress if you prefer the added height and airflow.

This particular model's cooling layer uses graphite-infused memory foam rather than carbon fiber. Graphite works similarly through conductivity. It pulls warmth away from the sleeping surface and redistributes it, which is why the layer feels cooler than standard memory foam and supports advanced heat regulation.

A tight top mattress has a smooth, flat sewn surface with the comfort layers built directly into the bed itself. A pillow top has an additional cushion-like layer sewn onto the surface. The Iona is a tight top, which gives it a cleaner profile and a more responsive feel while still delivering the contouring comfort of its memory foam layers.

Yes. The Iona Medium is an adjustable base compatible and works with motorized power foundations. At checkout on Cloudy Mattress, you can add an adjustable bed, a box spring with a metal foundation, or an old mattress removal service.

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