Simmons Beautyrest Core 13 Inch Firm Mattress on a wooden bed frame in a modern bedroom lifestyle setting.

Simmons Beautyrest Core 13 Inch Firm Mattress with a grey quilted cover for back and stomach sleepers.

Close-up of Simmons Beautyrest Core firm mattress texture, ideal for back and stomach sleeper support.

Simmons Beautyrest Core 13 Inch Firm Mattress and foundation set for stable, long-lasting sleep support.

Interior layers of Simmons Beautyrest Core mattress featuring enhanced lumbar support and motion isolation.

Simmons Beautyrest Core Level One Firm 13 Inch Mattress

Plush Medium Firm Pillow top Memory foam Hybrid

Simmons Beautyrest Core Level One Firm 13 Inch Mattress

$699.00

$899.00

Save $200.00

Brand:

beautyrest

i Size Guide

$699.00

Only 15 left in stock

Free USA Wide Delivery

10 Year Warranty

Advanced Technology

The Simmons Beautyrest Core Level One Firm Mattress delivers Simmons' signature pocketed coil support paired with firm foam layering in a 13-inch tight-top hybrid build. Cloudy Mattress is an Authorized Beautyrest retailer, so every purchase is an Official Simmons Beautyrest product backed by the full manufacturer's warranty.

The feel sits firmly on the supportive end of the comfort scale, making this a confident 13 inch firm pocketed coil mattress for back and stomach sleepers. Because of this stable, no-sink response, it ranks among the best 13-inch firm mattresses for back pain options for sleepers who want structured support.

Inside, multiple engineered components work together, beginning with a tight top firm comfort foam layers quilted surface that delivers an even, supportive sleep experience. This Beautyrest Core Level 1 Firm uses Beautyrest® ActiveResponse™ Memory Foam to contour to the body while maintaining the firm overall feel.

Furthermore, the firm foam layering supports maximum spinal alignment support ideal for firm, tight top mattresses for back support seekers. Beneath the comfort foams, the Beautyrest Pocketed Coil system forms the supportive core, with individually wrapped coils that deliver responsive support.

This signature innerspring support system also provides zero motion transfer for couples, making it a strong choice for those sharing the bed. A high-density support base foam anchors the build, delivering edge-to-edge stability and a durable, long-lasting mattress build that holds up over time.

The mattress also features antimicrobial treatment to help guard against microbial degradation, supporting a fresher mattress surface season after season. At a generous 13-inch profile, this Beautyrest 13-inch firm mattress king-size option and other variants are fully adjustable-base compatible.

Together, these layers deliver restorative deep sleep comfort that Beautyrest has built its reputation on across generations of dependable sleep products. Additionally, the mattress is Made in the USA, backed by a 10-year limited manufacturer warranty, and built to Simmons' quality standards.

Firm, Supportive Feel

This 13-inch firm pocketed coil mattress delivers no-sink structural support ideal for back and stomach sleepers needing maximum spinal alignment support.

Beautyrest Pocketed Coil System

The signature Beautyrest Pocketed Coil system delivers individualized support with motion separation sleep surface performance for couples.

Contouring Memory Foam

Beautyrest® ActiveResponse™ Memory Foam contours to the body for targeted pressure relief at the shoulders, hips, and lower back.

Generous 13-Inch Profile

The substantial 13-inch profile mattress height provides deep layered support and a substantial hotel-quality feel at home.

Zero Motion Transfer

The pocketed coil construction delivers zero motion transfer for couples, so partner movement is far less noticeable through the night.

Antimicrobial Surface Treatment

Built-in antimicrobial treatment helps guard against microorganism degradation for a fresher mattress surface over time.

Certified Clean Foams

All foams are CertiPUR-US certified foam, made without mercury, lead, formaldehyde, or other prohibited substances for safer indoor air.

Key Mattress Benefits

5 Layers
Of Cooling
Comfort

This tight-top mattress construction features a smooth quilted cover that delivers an even, consistent sleep surface across the entire mattress. The integrated design supports the mattress's firm, structured feel from the very top layer down.

This contouring foam layer is engineered specifically by Beautyrest to deliver pressure relief while supporting the firm overall feel of the mattress. As a result, sleepers benefit from cradled pressure points without the deep sink-in of a softer mattress.

The signature coil system features individually wrapped coils designed to deliver outstanding individualized support. Furthermore, the pocketed design reduces motion transfer between partners, supporting motion separation sleep surface performance throughout the night.

This high-density support base foam anchors the entire mattress build and reinforces the no-flip design. It helps maintain consistent shape, performance, and stability for years of dependable use.

A built-in antimicrobial treatment is applied to help guard against degradation from microorganisms and inhibit the growth of bacterial odors. This treatment is designed to support a fresher sleep environment, though it does not protect users against bacteria, viruses, or other disease organisms.

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Replaced decade-old mattress — Core Level One firm ended chronic pain

I replaced a decade-old mattress that had gradually softened over ten years. I had accepted the resulting back pain as aging. My GP insisted on a replacement and prescribed firm. The Core Level One Firm at 13 inches ended my chronic morning back pain within two weeks. I had been living with unnecessary pain for years because I was sleeping on the wrong mattress. Core Level One made the right mattress accessible and the result was immediate.

PTSD — grounded firm surface reduced nighttime hyperarousal

My VA therapist recommended firm support for my PTSD — the grounded stable sensation of a firm mattress reduces the dissociative floating that triggers nighttime hyperarousal in some PTSD presentations. I already needed firm for my back condition so this was a dual benefit. My nighttime hyperarousal events have reduced by more than half on the Core Level One Firm. The grounded sensation was the right therapeutic recommendation and the Core Level One provides it.

Firm support at a great price

Firm support at a great price. My back thanks me every morning.

Ankylosing spondylitis — Core Level One firm accessible on a healthcare budget

My rheumatologist prescribed firm support for my AS. After expensive specialist visits my mattress budget was limited. She confirmed the Core Level One tier would provide the relevant firm pocketed coil support for AS management. My morning spinal stiffness has dropped from 8/10 to 3/10 in eight weeks. Beautyrest Core Level One made the prescribed firm support accessible when my budget was stretched thin by medical costs. The therapeutic result is what matters and the Level One delivers it.

Cooling — pocketed coil Core Level One cooler than my old foam firm

My previous firm mattress was foam-based and ran warm year-round. The Core Level One Firm uses a pocketed coil system that circulates air through the mattress core continuously. Even at the Level One tier the coil construction sleeps noticeably cooler than any foam firm I've owned. For warm sleepers who need firm support the Core Level One pocketed coil is the correct construction at any budget.

HAVE QUESTIONS?

WE'VE GOT ANSWERS

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

Yes, the Beautyrest Core Level One Firm is well-suited for back sleepers, and especially for those who prefer a firmer feel. The structured pocketed coil system, combined with firm foam layering, delivers stable support that helps keep the spine in healthy alignment through the night.

This particular Beautyrest Core Level One model sits on the firm side of the comfort scale, designed for sleepers who want substantial structural support without deep sink-in. It is generally suited for back sleepers, stomach sleepers, and combination sleepers who prefer a no-sink feel.

Beautyrest mattresses require proper support to maintain the warranty. The mattress can be placed on a Beautyrest foundation, an adjustable base, or a platform bed with proper slat support. Cloudy Mattress also offers an optional box spring with a metal foundation as an add-on at checkout.

Yes, the Beautyrest Core Level One Firm is an adjustable base compatible. You can pair it with your preferred adjustable foundation for personalized positioning, including elevating the head or foot of the bed for reading, watching TV, or zero-gravity rest.

The Core Level One focuses primarily on firm pocketed coil support and ActiveResponse Memory Foam comfort. Cool-to-the-touch and advanced cooling technologies in the Beautyrest lineup begin at Level 2 and increase across the higher-tier collections. If active cooling features are a top priority for you, the Level 2 and above models offer dedicated cooling surfaces and additional temperature-regulation technology.

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