Simmons Beautyrest World Class Level Four 13.5" Firm Hybrid Mattress in a luxurious, modern bedroom setting.

Lifestyle side view of the 13.5-inch Beautyrest World Class Level Four Hybrid mattress on a designer bed frame.

Beautyrest World Class Level Four Hybrid 13.5" Mattress featuring a premium geometric quilted top.

Front view of the Beautyrest World Class Level Four mattress with a high-end, cooling quilted cover.

Side sleeper enjoying the contouring support of a Simmons Beautyrest World Class Hybrid Level Four mattress.

Product infographic describing the plush comfort and side-sleeper benefits of the Beautyrest World Class mattress.

Spine alignment demonstration on a Beautyrest World Class 13.5" mattress for restorative, healthy sleep.

Diagram of internal mattress layers including premier coil support and advanced cooling technology.

Beautyrest® World Class™ Hybrid Level Four Firm 13.5 Inch Mattress

Plush Medium Firm Pillow top Memory foam Hybrid

Beautyrest® World Class™ Hybrid Level Four Firm 13.5 Inch Mattress

$1,699.00

$1,999.00

Save $300.00

Brand:

beautyrest

i Size Guide

$1,699.00

Only 15 left in stock

Free USA Wide Delivery

10 Year Warranty

Advanced Technology

To begin with, the Beautyrest World Class Hybrid Level 4 Firm greets you with an upgraded quilt that feels welcoming yet remains supportive. This 13.5 Inch Firm Hybrid Mattress uses a cool-to-the-touch InfiniCool® MAX surface that moves excess heat away for a fresher first impression.

Next, 2 × SurfaceTouch™ Gel Memory Foam and ActiveResponse™ MAX Memory Foam team up to create pressure-relieving hybrid comfort that eases shoulders while holding the torso steady. Because of this balance, it performs well as a 13.5-inch firm hybrid mattress for back sleepers who need lift without harshness.

Deeper down, a 1000 Density Pocketed Coil® unit delivers targeted spinal alignment support and advanced motion isolation for couples, forming a truly firm pocketed coil hybrid mattress queen or king that stays quiet through the night.

Finally, Cloudy Mattress lets you buy Beautyrest Hybrid Level 4 online with Free shipping in the USA, quick 1–2 week delivery, and convenient financing, so owning a luxury firm hybrid mattress in the USA is effortless.

Upgraded Firm Hybrid Support

Enhanced foams build on Level 3 for a sturdier feel, ideal for back and stomach sleepers.

Premier Pocketed-Coil System

1,000 individually wrapped springs adapt precisely and block partner movement, ensuring advanced motion isolation for couples.

Next-Level Pressure Relief

Twin layers of gel memory foam and high-density memory foam supply deeper contouring for fewer sore spots.

InfiniCool® MAX Cover

The cool-to-the-touch sleep surface helps maintain a comfortable skin temperature all night.

Edge-to-Edge Durability

Reinforced perimeter supports sitting or sleeping right to the rim, promoting durable no-sag hybrid construction.

Sale + Flexible Payments

Current $500 savings and financing make upgrades easy.

Key Mattress Benefits

7 Layers
Of Cooling
Comfort

Performance knit feels cool instantly and channels heat away.

Soft fibers supply first-touch cushioning without trapping warmth.

Gel infusion moderates heat while molding closely for immediate relief.

Responsive, high-density layer spreads weight evenly and resists body impressions.

Extra-dense transition foam lifts the lumbar region and adds lifelong resilience.

Individually wrapped coils align the spine, steady partners, and extend edge strength.

A firm foundation anchors the coil system for lasting support.

DISCOVER WHY BUYING WITH

CLOUDY MATTRESS IS THE SMARTER CHOICE

From better sleep support to trusted quality, Cloudy Mattress gives you more value for your money.

FASTEST SHIPPING

Get your new mattress delivered quicker than ever with our priority nationwide shipping.

24 / 7 CUSTOMER SUPPORT

Get your new mattress delivered quicker than ever with our priority nationwide shipping.

EXPERT GUIDANCE

Get your new mattress delivered quicker than ever with our priority nationwide shipping.

BEST PRICE GUARANTEED

Get your new mattress delivered quicker than ever with our priority nationwide shipping.

Lumbar stenosis — World Class Hybrid Level Four firm for maximum spinal canal protection and hybr...

My spine specialist prescribed the World Class Hybrid Level Four firm for my lumbar stenosis. Level Four firm coil density provides the most precise surface resistance to prevent overnight spinal canal narrowing. Hybrid construction manages the neurogenic inflammation heat that stenosis generates. Both canal protection and heat management improved measurably.

Beautyrest World Class hybrid firm — Level Four precision worth every premium dollar.

Beautyrest World Class hybrid firm — Level Four precision worth every premium dollar.

Chronic lumbar disc disease — World Class Hybrid Level Four firm prescribed for maximum spinal su...

My spine surgeon prescribed the World Class Hybrid Level Four firm for my multilevel lumbar disc disease. She specified Level Four for the highest pocketed coil density in the World Class line — the most precise lumbar support available. Hybrid construction breathes beneath the firm comfort layer, dissipating disc inflammation heat that all-foam firm mattresses retain. Lumbar pain from 8/10 to 0/10 at five weeks.

Edge support less firm than expected at premium Level Four — functional but not a seated edge

Edge support on the World Class Hybrid Level Four firm compresses more than I expected at the premium price tier. For sleeping on the full surface it is excellent. A firmer perimeter edge system would be expected at the World Class Level Four price.

Firm specification degrading at five months — warranty pending at 28 days at premium price

The World Class Hybrid Level Four firm has drifted from firm toward medium at five months. I'm 164 lbs. My spine surgeon confirmed the surface no longer meets his firm prescription for my fusion protection. Filed warranty claim. Day 28 without resolution. A premium World Class firm degrading at five months is significantly below expectation.

HAVE QUESTIONS?

WE'VE GOT ANSWERS

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

Its firm coil core and reinforced lumbar foams hold the spine neutral, which many back sleepers appreciate. Individual medical needs vary, so use the 120-day trial to confirm comfort.

Level 4 adds thicker foam layers, a taller 13.5-inch profile, and enhanced cooling compared with Level 3, giving firmer lift and more durable pressure relief. This brief Beautyrest Level 4 vs Level 3 hybrid comparison helps you decide which feels suits you.

No. Any solid platform, slatted base with gaps under 3 inches, or adjustable bed will support it well, though a traditional box spring is still compatible.

This model uses InfiniCool® technology rather than Micro Diamond foam. InfiniCool fabrics draw heat away to maintain a cooler, cool-to-the-touch sleep surface.

Harmony Lux Diamond is a separate collection. Like this Level 4 hybrid, it is designed to flex on most adjustable foundations when properly supported.

Still

Have Questions ?

Our sleep specialists are dedicated to helping you find the mattress of your dreams. Give us a call or chat with us now.

GIVE US A CALL

Speak directly with an expert to find the right support for your sleep style.

+1 800 540 9851

CHAT WITH US

Get the answers you need without picking up the phone.

Let’s Chat!

SEND US A MAIL

Prefer to write it out? Drop us a message, and we’ll get back to you within 24 hours.

Send An Email