Serta iComfortPRO Dartmouth 15 inch plush pillow top mattress in a modern blue bedroom.

Serta iComfortPRO Quilted Dartmouth latex foam plush pillow top mattress with cooling cover.

Internal cross-section of Serta iComfortPRO Dartmouth mattress showing hybrid coils and latex layers.

Serta iComfortPRO Dartmouth plush pillow top mattress on an adjustable bed base for customized comfort.

Close-up of the breathable geometric quilted pattern on a Serta iComfortPRO Dartmouth mattress.

Detail of Serta iComfortPRO Dartmouth mattress branding on a supportive navy blue side panel.

Serta iComfortPRO Quilted Dartmouth 15" plush pillow top mattress providing cooling and spinal support.

Supportive edge of the Serta iComfortPRO Dartmouth plush pillow top mattress being tested for stability.

Serta Dartmouth plush pillow top mattress diagram highlighting zoned support and pressure relief.

Exploded view of Serta iComfortPRO Dartmouth mattress with 5" latex foam and advanced cooling layers.

Serta iComfortPRO Quilted Dartmouth Latex Foam Plush Pillow Top 15 Inch Mattress

Plush Medium Firm Pillow top Memory foam Hybrid

Serta iComfortPRO Quilted Dartmouth Latex Foam Plush Pillow Top 15 Inch Mattress

$2,299.00

$3,499.00

Save $1,200.00

Brand:

Serta

i Size Guide

$2,299.00

Only 22 left in stock

Free USA Wide Delivery

10 Year Warranty

Advanced Technology

The Serta iComfortPRO Dartmouth Plush Pillow Top Mattress is engineered for sleepers who want the deepest cushioning Serta builds into the iComfortPRO line. To begin with, it brings together a quilted pillow top cover with five inches of graphite-infused True Response™ Latex Foam to deliver cloud-like, restorative sleep night after night.

Next, the feel is decidedly soft. As a Serta iComfortPRO 15 Inch Plush Mattress built specifically for side sleepers, the Dartmouth Plush Pillow Top targets shoulder, hip, and lower-back pressure relief, making it a leading choice for the best 15 inch pillow top mattress for side sleepers.

Moreover, the cooling system uses one of nature's best temperature regulators. Latex foam from rubber trees is naturally breathable and does not trap heat the way synthetic foams can. Paired with graphite infusion, gel-infused quilt foam, and the Cold Touch breathable cover, the result is advanced temperature regulation that performs night after night.

Because of this latex-first approach, the bed delivers ultimate pressure point relief, natural latex buoyancy and breathability, and luxury high-profile aesthetics within a substantial 15-inch profile. The result is a hotel-quality presence anchored by responsive contouring rather than the sinking feeling of memory foam.

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

Plush Pillow Top built for side sleepers

Serta specifically positions the Dartmouth for side sleepers seeking cloud-like softness, making it a top pick as the best 15 inch pillow top mattress for side sleepers.

Five inches of premium latex foam

Five inches of graphite-infused True Response™ Latex Foam deliver a premium Latex Foam layer with responsive contouring, increased breathability, and greater longevity than memory foam.

Graphite-infused cooling latex

Graphite infusion in the latex redistributes body heat away from the sleeper, working with natural latex breathability to drive advanced temperature regulation.

Gel-infused quilt layer

Cool Twist® Gel Memory Foam in the quilt enhances airflow and heat dissipation, reinforcing the bed's cooling system from the very top layer.

Zoned support for spinal alignment

Serta's 5 ZoneResponse™ Design delivers head-to-toe support across five engineered latex zones, supporting the spine even within the Deep Cushioning Pillow Top feel.

Quiet, undisturbed nights

Latex construction provides maximum motion isolation for couples, dampening partner movement so you can sleep through the night undisturbed.

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 Dartmouth sits within the premium Serta iComfortPRO Collection.

Key Mattress Benefits

6 Layers
Of Cooling
Comfort

The quilted pillow top uses cool-to-the-touch fabric designed to feel refreshing the moment you lie down. This Cold Touch breathable cover forms the soft, puffy top surface that defines a pillow-top mattress.

Cool Twist® Gel Memory Foam is swirled into the quilt construction. Cooling gel improves airflow and heat dissipation from the top surface inward, reinforcing the cooling system before sleepers even reach the latex layers below.

PillowSoft® Aire delivers enhanced cushioning right beneath the quilt. Engineered with a gently rippling design, this layer promotes airflow through the comfort system while deepening the Deep Cushioning Pillow Top feel.

Five inches of graphite-infused True Response™ Latex Foam form the heart of the comfort system. Naturally derived from rubber trees, this latex is responsive and durable, while the graphite infusion redistributes body heat away from the sleeper.

The latex layer is engineered with five distinct support zones at alternating firmness levels. These zones provide firmer support beneath the lumbar and hip region while keeping shoulders and lower legs softly cushioned, delivering full-body spinal alignment without compromising the Plush feel.

The base layer establishes the 15-inch mattress profile and provides durable, consistent support edge to edge. This foundational layer anchors the entire bed and gives the Dartmouth its lasting shape across years of use.

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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. Serta specifically positions the Dartmouth Plush Pillow Top for side sleepers seeking cloud-like softness. The five inches of latex foam combined with PillowSoft® Aire and the Cool Twist® gel-infused quilt deliver ultimate pressure point relief at the shoulders, hips, and lower back, which is exactly what side sleepers need to keep the spine aligned.

The Dartmouth sits in Serta's Comfort Level 2 lineup and is the Plush Pillow Top variant. Compared to the Chelsea Medium or the Granby Extra Firm, the Dartmouth has more latex foam (five inches versus two), a 15-inch profile rather than 11.5 or 12, a pillow top construction rather than a tight top, and added Cool Twist® Gel Memory Foam in the quilt. Together these give it the deepest cushioning and the most luxurious profile of the lower Comfort Levels.

Yes. With a 15-inch mattress profile, this bed is taller than a standard 10 or 12-inch mattress, so deep-pocket fitted sheets are recommended. Many deep-pocket sheets are rated to fit mattresses up to 16 or 18 inches thick, which works well for this model.

It is responsive, meaning it bounces back as you change positions rather than holding an impression. It is naturally breathable, supporting natural latex buoyancy and breathability. It is more durable than memory foam, retaining its feel over years of use. And it is naturally non-toxic, sourced from rubber trees.

The Dartmouth is a latex foam mattress, not a hybrid. It does not contain pocketed coils or innersprings. Its responsive feel and support come from layered True Response™ Latex Foam over a high-density support foam core, all engineered into a quilted pillow top 15-inch profile.

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