Serta iComfort Iona Plush Tight Top 13 Inch Mattress on a modern wooden bed frame in a blue bedroom.

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

Close-up of Serta iComfort Iona branding on a navy blue quilted mattress panel with cooling fabric.

Front view of the 13 inch Serta iComfort Iona plush tight top mattress with advanced cooling tech.

Top-down view of the cooling fabric pattern on the Serta iComfort Iona plush tight top mattress.

Interior cross-section of the Serta iComfort Iona mattress showing breathable memory foam layers.

Infographic for Serta Iona Plush mattress detailing cooling cover, pressure relief, and 5-zone support.

Exploded view of Serta iComfort Iona 13 inch mattress layers including 5-zone full body support system.

Serta iComfort Iona Plush Tight Top 13 Inch Mattress

Plush Medium Firm Pillow top Memory foam Hybrid

Serta iComfort Iona Plush Tight Top 13 Inch Mattress

$1,399.00

$1,799.00

Save $400.00

Brand:

Serta

i Size Guide

$1,399.00

Only 22 left in stock

Free USA Wide Delivery

10 Year Warranty

Advanced Technology

The Serta iComfort Iona Plush Mattress is built for sleepers who want a luxurious, deeper profile paired with a soft, cradling surface. To begin with, it brings together a cool-to-the-touch cover with several layers of premium memory foam to deliver restorative, rejuvenating sleep night after night.

Next, the feel is decidedly soft. As a soft Serta iComfort mattress USA customers can shop online, the Iona Plush is purpose-built for shoulder, hip, and lower-back pressure relief, making it a top contender for the best plush mattress for side sleepers with hip pain.

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 soft memory foam mattress for hot sleepers who often overheat at night.

Because of this layered approach, the bed delivers cloud-like pressure point relief, advanced cooling for restorative sleep, and a luxury 13-inch high profile feel that anchors the bedroom with hotel-quality presence. The result is consistent comfort and targeted cushioning for shoulders and hips in every sleeping position.

Finally, this 13 inch plush 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 retailer, 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.

Plush feel built for side sleepers

This 13 inch plush memory foam mattress softens the surface where shoulders and hips press in, easing pressure where side sleepers need it most.

Luxurious high-profile presence

The luxury 13-inch high profile feel stacks generous comfort foams over a substantial support core, giving the mattress a premium hotel-quality stature.

Cooling-focused construction

A graphite-infused memory foam layer paired with CoolFeel™ Fabric delivers advanced cooling for restorative sleep, drawing warmth away from the body through the night.

Gel-infused pressure relief

EverCool Fuze Gel Memory Foam combines cooling gel with premium memory foam for a deeply contouring, pressure-relieving embrace.

Zoned support for spinal alignment

Serta's 5 ZoneResponse™ Design provides head-to-toe support across five engineered zones, keeping the spine aligned even with the Plush feel above.

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 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 Plush sits within the established Serta iComfort Collection.

Key Mattress Benefits

6 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.

A 2.5-inch comfort layer combining cooling gel with premium memory foam sits directly beneath the cover. This EverCool Fuze Gel Memory Foam layer enhances airflow at the sleep surface while delivering the cloud-like pressure point relief that defines the Plush feel.

One inch of premium memory foam infused with graphite follows. Graphite is naturally conductive, which is why this layer redistributes body heat away from the sleeper and drives the bed's advanced cooling for restorative sleep.

A one-inch transition layer of comfort foam contours the body and bridges the soft top layers to the support system below. It deepens the targeted cushioning for shoulders and hips that side sleepers reach for.

A 1.5-inch zoned foam layer follows, with five ergonomically engineered zones at alternating firmness levels. These zones provide enhanced support beneath the lower back and upper thighs while keeping shoulders and hips cushioned, supporting pressure-relieving plush foam layers without losing alignment.

A 7-inch high-density support foam core anchors the 13-inch mattress thickness. The Ultimate Edge encasement reinforces the perimeter, giving the bed strong edge support and rounding out 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. Plush is Serta's softest comfort level on this model, and the brand specifically positions it for side sleepers because the surface gives extra cushioning at the shoulders, hips, and lower back. The combination of EverCool® Fuze Gel and graphite-infused memory foam adds targeted cushioning for shoulders and hips where side sleepers tend to feel pressure first.

The Iona's cooling system works through three layers acting together. The CoolFeel™ Fabric cover feels cool to the touch on contact. The graphite-infused memory foam below uses graphite's natural conductivity to draw heat away from the body. The EverCool® Fuze Gel Memory Foam adds gel-based heat dispersion and improved airflow. Together these layers deliver advanced cooling for restorative sleep without compromising the Plush feel.

Yes. With a 13-inch mattress thickness, this bed is taller than a standard 10-inch mattress, so deep-pocket fitted sheets are recommended. Most deep-pocket sheets are rated to fit mattresses up to 14 or 16 inches thick.

Yes. The Iona Plush is adjustable base compatible and works with motorized power foundations, as well as traditional frames, platform beds, slatted frames, and box springs. At checkout on Cloudy Mattress, you can add an adjustable bed, a box spring with metal foundation, or old mattress removal service.

The Plush version is softer, with deeper cradling at the shoulders and hips for side sleepers. The Medium sits in the middle of the firmness scale for combination sleepers and those who change positions overnight. If you compare Serta iComfort Iona plush vs medium, choose Plush for more sink and Medium for more surface support.

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