Do Beautyrest Black and World Class Mattresses Contain Fiberglass?

When shopping for a new mattress—especially a premium one like Beautyrest Black or Beautyrest World Class—safety matters just as much as comfort. One of the most common concerns today is whether a mattress contains fiberglass, a cheap fire-retardant material that can pose health risks if mishandled.

In this detailed guide, we’ll answer whether Beautyrest uses fiberglass, explain their fire-resistant materials, break down mattress layers, and help you identify if your mattress contains fiberglass—and what to do if it does.

Do Beautyrest Mattresses Contain Fiberglass?

No, Beautyrest Black and Beautyrest World Class mattresses do not contain fiberglass.

Instead, Simmons Beautyrest uses SIMGARD™, a non-fiberglass fire barrier technology that complies with federal flammability standards. SIMGARD™ is a proprietary solution that ensures safety without relying on glass fibers, which can become airborne and dangerous if a mattress cover is unzipped or compromised.

Additionally, these mattresses carry the CertiPUR-US® certification, meaning their foams are:

• Low in VOC emissions for indoor air quality
• Made without PBDEs, formaldehyde, ozone depleters, heavy metals, or CFCs
• Free from harmful flame retardants

How Can You Tell If a Mattress Contains Fiberglass?

If you’re unsure about the materials in your mattress, here’s how to find out:

1. Check the Label: Look at the tag sewn into the side or base of the mattress. This legally required label will list components like “glass fiber” or “fiberglass” if they are present. Beautyrest mattresses typically list materials like rayon, polyester, or SIMGARD™ instead of fiberglass.
2. Call the Manufacturer: The most reliable way to confirm whether a mattress contains fiberglass is to contact the manufacturer directly. Simmons (the maker of Beautyrest) has customer service teams that can verify the materials used in your specific mattress model—just provide the model name or serial number from the label.
3. Look for Certifications: Choose mattresses with the CertiPUR-US® logo. This certification is a strong indicator that the foams used are free of fiberglass and other harmful materials.

What Is SIMGARD™ and Why Is It Safer?

SIMGARD™ is a proprietary, fiberglass-free fire barrier used in Beautyrest mattresses. Designed to meet U.S. flammability safety standards (CFR 1632 and CFR 1633), SIMGARD™ offers peace of mind by being:

• Non-toxic and hypoallergenic
• Durably woven into the mattress structure
• Stable under regular use
• Safe to be near children, pets, and sensitive skin

Unlike fiberglass, which can irritate skin and lungs if it escapes from the mattress, SIMGARD™ is engineered to stay in place and protect sleepers safely.

What Are the Layers of Beautyrest Black Series?

Inside the Beautyrest Black Series Four: Plush APEX Top. Every mattress series is different, but contains some similar layers.

Top Quilt Layer

Sleep Climate™ Surface Cooling Cover and Micro Diamond™ Memory Foam

• Benefit: Actively draws heat away from your body using phase-change technology and breathable fabric.
• Why it matters: Keeps sleepers cooler throughout the night, especially beneficial for hot sleepers or those in warmer climates.
• Eco-conscious edge: Infused with plant-based materials, offering a more sustainable approach to performance cooling.

Antimicrobial Performance Technology

• Benefit: Helps inhibit the growth of bacteria, mold, and mildew on the mattress surface.
• Why it matters: Promotes a healthier sleep environment and keeps the mattress fresher for longer, ideal for allergy sufferers or humid climates.

Comfort Layers

SurfaceTouch™ Memory Foam

• Benefit: Placed directly beneath the quilt layer, this foam conforms instantly to the body for immediate pressure relief.
• Why it matters: Enhances the feeling of cradling comfort right when you lie down, reducing tension in shoulders, hips, and joints.

AirCool® Memory Foam

• Benefit: Designed with an open-cell structure that improves airflow while maintaining adaptive contouring.
• Why it matters: Prevents heat buildup and helps regulate temperature while still offering cushioning support.

Self-Response Latex (Select Models Only)

• Benefit: Naturally responsive and slightly bouncy, it adapts to movement without that “sinking” feeling.
• Why it matters: Offers targeted support while promoting spinal alignment; also resistant to dust mites and allergens.

Beautyrest® Gel Memory Foam

• Benefit: Infused with cooling gel beads that help dissipate heat and add structural support.
• Why it matters: Combines pressure relief with improved temperature regulation and a firmer feel for deeper support.

Support System

T3 Pocketed Coil® Technology (Triple-Stranded Coils)

• Benefit: These unique, triple-wrapped coils offer reinforced durability, enhanced motion isolation, and precise body support.
• Why it matters: Reduces motion transfer between partners while providing more robust support for heavier areas of the body like the hips and lower back.

Zoned Support for Pressure Relief and Spine Alignment

• Benefit: Different zones within the coil system are engineered to offer firmer support under the lumbar region and gentler cushioning near the shoulders and legs.
• Why it matters: Encourages a more neutral spinal posture and helps relieve back pain—ideal for all sleeping positions, especially back and side sleepers.

Base Layer

Durable, High-Density Foam Foundation

• Benefit: Serves as a stable base that absorbs impact and reinforces the overall mattress structure.
• Why it matters: Extends mattress longevity and prevents sagging, ensuring the comfort and support layers above perform at their best over time.

Each of these layers is thoughtfully designed to work in harmony, resulting in a mattress that offers luxury comfort, cooling technology, personalized support, and long-term durability. Whether you’re seeking pressure relief, motion isolation, or temperature control, the Beautyrest Black delivers across the board.

The Layers of the Beautyrest World Class Collection

Here’s a detailed breakdown of each component in the Beautyrest World Class mattress, with a focus on the benefits of each layer and how they work together to deliver a luxurious, supportive, and temperature-regulated sleep experience:

Inside the Beautyrest World Class: Medium Firm mattress. Every mattress level is different, but contains some similar layers.

Cooling Layer

InfiniCool® MAX or SurfaceTouch™ Gel Memory Foam

• Benefit: Delivers advanced temperature regulation by drawing heat away from the body and dispersing it across the mattress surface.
• Why it matters: Keeps the sleep environment cool and comfortable, especially important for those who overheat at night. The gel memory foam also provides light contouring while maintaining airflow.

Stretch-Knit Cover with Cooling Fibers

• Benefit: Soft, breathable fabric that is woven with specialized cooling yarns designed to feel cool to the touch.
• Why it matters: Offers instant coolness when you lie down, enhancing the mattress’s ability to reduce night sweats and help you fall asleep faster in a more temperature-stable environment.

Comfort & Transition Foams

ActiveResponse™ MAX Memory Foam

• Benefit: A high-resilience memory foam that offers adaptive pressure relief without excessive sinking.
• Why it matters: Promotes a more responsive feel, adjusting quickly to movement while still cradling pressure points like hips and shoulders—ideal for combination sleepers who shift positions at night.

High-Density World Class Relief™ Foam

• Benefit: Provides deep, stable contouring support that balances softness with resistance.
• Why it matters: Ensures even weight distribution and reinforces spinal alignment, making it a good fit for those with back pain or who need extra lower back support. The density also adds durability to the mattress.

Support Core

Zoned 1000 Density Pocketed Coil® System with Edge Support

• Benefit: Offers individualized support with targeted zones—firmer in the center for lumbar support, and softer near the shoulders and knees.
• Why it matters: Encourages natural spinal alignment while reducing motion transfer between partners. The edge support prevents sagging and allows for full use of the mattress surface, which is especially helpful for couples.

Base Layer

Base Support Foam for Long-Lasting Durability

• Benefit: Provides foundational strength to the mattress and enhances the performance of the layers above.
• Why it matters: Maintains structural integrity over time, preventing premature sagging and helping the mattress retain its shape and comfort through years of use.

Optional Pillow Top

Plush, Cloud-Like Sleep Surface (Available in Multiple Firmness Levels)

• Benefit: Adds an extra layer of ultra-soft cushioning for a more luxurious feel without compromising support.
• Why it matters: Ideal for side sleepers or anyone who prefers a more “floating” sensation. Available in firmness levels like Plush, Medium, or Firm, giving sleepers the ability to choose the comfort level that best suits their preferences.

Thoughtfully Engineered

Each component in the Beautyrest World Class mattress is engineered to provide:

• Cool, comfortable sleep through high-performance temperature-regulating foams and fabrics.
• Responsive pressure relief and deep contouring for optimal body support.
• Zoned spinal alignment and reinforced edge strength for better posture and durability.
• Customizable comfort with pillow top options to suit a range of sleep styles.

Together, these layers create a mattress that balances comfort, cooling, and long-term support—ideal for anyone seeking hotel-like luxury at home. Let me know if you’d like this adapted into comparison tables, marketing bullets, or product page content!

What Should You Do If Your Mattress Contains Fiberglass?

If you own a mattress—especially a budget model purchased online—that may contain fiberglass, here’s how to protect yourself:

Keep the Cover Intact: Never unzip or remove the cover if fiberglass is suspected; doing so may release harmful fibers into the air.

Use a High-Quality Mattress Encasement: Protect your home and health by sealing the mattress in a zippered encasement designed to contain allergens and fiberglass particles.

Replace the Mattress When Possible: If fiberglass contamination has occurred or if you want a safer sleep environment, it’s best to upgrade to a fiberglass-free model like Beautyrest Black or World Class.

Consult a Professional Cleaner: If fiberglass has escaped into your home, professional remediation may be needed to clean carpets, furniture, and HVAC systems.

Fiberglass-free Peace and CertiPUR-US® Certified

Beautyrest Black and World Class mattresses offer far more than luxury—they deliver peace of mind. These premium models are fiberglass-free, CertiPUR-US® certified, and made with materials like SIMGARD™ that meet the highest safety standards without sacrificing comfort or breathability.

From advanced cooling technologies to layered memory foam and individually pocketed coils, these mattresses provide long-lasting support and a cleaner, healthier night’s sleep.

Thinking of upgrading your mattress? Beautyrest is a smart, safe investment—especially if you want to avoid the health hazards associated with fiberglass.