Front view of the South Bay Essentials 10-inch gel-infused memory foam mattress on a walnut platform bed frame in a modern bedroom with green walls. Cooling features graphic for South Bay Essentials mattress highlighting temperature-neutral sleep using gel-infused memory foam and articulated cuts. Three-quarter angle of the Essentials 10-inch firm memory foam mattress by South Bay, showcasing the light grey quilted top and charcoal side panels. Overhead view of the South Bay Essentials mattress sleep surface highlighting the breathable diamond-quilted comfort cover. Low-profile side view of the 10-inch thick Essentials mattress by South Bay demonstrating its supportive foam layers on a minimalist wooden frame. Easy 3-step setup infographic for South Bay mattresses: unbox, unroll, and sleep, showing a woman sleeping comfortably. Numbered infographic of the South Bay Essentials 10-inch mattress construction including comfort quilt, gel-infused layer, and 9-inch reactive core. Mattress firmness scale for South Bay Essentials indicating a "Medium" feel, recommended for side, stomach, and back sleepers. Infographic for South Bay Essentials mattress explaining targeted hip support and articulated cuts designed for use with adjustable bed bases. Technical diagram of South Bay 10-inch Essentials mattress layers highlighting cooling gel foam, Air Channel base support, and adjustable base compatibility.
Essentials Gel Infused Memory Foam Comfort Reactive 10 inch Medium Mattress By South Bay
Ultra Soft Soft Medium Soft Medium Medium Firm Firm Extra Firm

Essentials Gel Infused Memory Foam Comfort Reactive 10 inch Medium Mattress By South Bay

$399.00
$595.00
Save $196.00
Brand: SOUTH BAY
Size
i Size Guide
$399.00
Only 13 left in stock
Free USA Wide Delivery Free USA Wide Delivery
10-Year Limited Warranty 10-Year Limited Warranty

The South Bay Essentials 10 Inch Mattress is a value-focused all-foam sleep solution that delivers cooling gel comfort and balanced support in a 10-inch profile. Cloudy Mattress is the authorized South Bay retailer for this product, so every purchase comes from a trusted retail source backed by the manufacturer's full warranty.

The feel sits comfortably in the middle of the comfort spectrum, making it a confident 10-inch medium memory foam mattress suited to back, side, and stomach sleepers alike. Because of this balanced response, it ranks among the top 10-inch medium mattress options for all-around comfort in the value tier.

Inside, engineered foam layers work together, beginning with gel-infused viscoelastic foam at the surface for contouring comfort and heat dissipation. This gel-infused medium mattress, 10 inches, uses cooling gel sleep technology to draw heat away from the body for a more breathable sleep environment. Furthermore, the reactive comfort foam technology transition layer bridges the soft top and supportive base, balancing weightless pressure relief with just enough lift.

The open-cell foam structure throughout the build promotes airflow, supporting deep restorative sleep through the night. Beneath the comfort layers, a high-density poly-foam base anchors the mattress with the medium orthopedic feel and stability sleepers need.

The construction also delivers targeted spinal alignment support that benefits back, side, and stomach sleepers seeking a balanced, medium-feel rest. At a full 10-inch profile, this South Bay Comfort Reactive mattress is fully adjustable base compatible, pairing seamlessly with modern foundations.

The mattress arrives via Mattress-in-a-box delivery, compressed and rolled for convenient setup, and is backed by a 10-year manufacturer's warranty. Additionally, it features non-toxic certified materials with CertiPUR-US certified foams for healthier indoor air quality.

Cooling Gel-Infused Comfort

The gel-infused viscoelastic foam top layer uses cooling gel sleep technology to dissipate body heat for a more comfortable night.

Balanced, Medium Feel

This 10 inch medium memory foam mattress delivers a balanced orthopedic feel ideal as a medium mattress for back, side, and stomach sleepers.

Pressure Relief Where You Need It

Reactive comfort foam technology in the transition layer delivers weightless pressure relief at hips, shoulders, and lower back.

Durable Long-Term Support

A high-density poly-foam base provides therapeutic foam layering that supports lasting shape and consistent performance.

Targeted Alignment Support

Layered foams work together to deliver targeted spinal alignment support, especially helpful for back-leaning sleepers.

Adjustable Base Ready

Fully adjustable base compatible, this 10-inch mattress pairs seamlessly with your preferred foundation.

Certified Clean Foams

Built with CertiPUR-US certified foam and non-toxic certified materials, made without formaldehyde, phthalates, heavy metals, or ozone depleters.

Key Mattress Benefits

Essentials Gel Infused Memory Foam Comfort Reactive 10 inch Medium Mattress By South Bay

4 Layers
Of Cooling
Comfort

This top comfort layer is the gel-infused viscoelastic foam that gives the mattress its cradling feel. The gel infusion is engineered to promote breathability so the surface stays cooler than traditional memory foam.

This middle layer uses reactive comfort foam technology to bridge the soft top and the firm base. As a result, sleepers get balanced contouring with pressure-relieving mattress layers that support targeted spinal alignment.

This bottom layer is the high-density poly-foam base that reinforces stability and anchors the overall build. Furthermore, the channeled construction promotes airflow through the core, supporting cooling from below.

The exterior quilted cover delivers a soft, breathable finish to the sleep surface and complements the gel-infused cooling system below. Its construction supports a fresher feel through regular cleaning and care.

Essentials Gel Infused Memory Foam Comfort Reactive 10 inch Medium Mattress By South Bay
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Designed for deep comfort and better rest, so you wake up refreshed and ready for the day

No, the 10-inch Essentials sits in the medium range of the comfort scale, making it well-suited for back, side, and stomach sleepers who want balanced, no-sink support with cushioned pressure relief. The transitional reactive foam adds contouring comfort on top of that supportive base.

A box spring is not required. The mattress can be placed on a continuously solid surface, an adjustable base, or slats spaced no more than two inches apart. Cloudy Mattress also offers an optional box spring with a metal foundation as an add-on at checkout.

Yes, the top layer is built with gel-infused memory foam designed to dissipate body heat. The gel beads conduct heat away from the surface, and the open-cell foam structure adds airflow, making the top of the mattress noticeably cooler than dense conventional memory foam.

The mattress may take up to 72 hours to fully recover its shape after unboxing. You can sleep on it right away, as body heat and movement help speed the expansion process along.

Yes, all foams in this mattress are CertiPUR-US certified. They are made without formaldehyde, phthalates, ozone depleters, heavy metals, PBDEs, or listed Tris flame retardants, and they meet low-VOC standards for indoor air quality.

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