When you’re trying to determine whether your mattress contains fiberglass, the first step is to check the law tag sewn into the mattress. This is often found under the mattress cover and should list all the materials used within. If you see terms like “glass fiber” or terms indicating fiberglass components, that’s a clear sign. However, not all manufacturers clearly disclose this information on labels, so you may need to consult the product manual, manufacturer’s website, or inquire directly with customer support to get a definitive answer.
Understanding Fiberglass in Mattresses
Fiberglass is a material made from extremely fine fibers of glass. It is typically used in mattresses as a fire retardant, in compliance with government safety standards, which require all mattresses to be resistant to open flames. Its cost-effectiveness is one main reason manufacturers include fiberglass in their products. It can cause health problems, however, if fiberglass particles become airborne and are inhaled or come into contact with skin.
Why Do Manufacturers Use Fiberglass?
Apart from being an affordable fire retardant, fiberglass also has properties that make it desirable for mattress construction. It is exceptionally durable and can aid in maintaining a mattress’s shape over time. It doesn’t burn quickly, which is why it can prevent the spread of fire.
Potential Health Risks Associated with Fiberglass
The downside to fiberglass is the health and environmental risks it poses when not properly contained. The fine particles can irritate the skin, eyes, and respiratory system. This release is more likely to occur if the mattress cover, which is intended to contain the fiberglass, is removed or damaged.
Our Top 5 Mattress Picks
Updated September 2026EGOHOME 8-Inch Green Tea Memory Foam Mattress, Full, Medium Firm
Best for most bedrooms. A medium-firm green tea memory foam mattress with a cooling gel layer, delivered rolled in a box.
- Full size, 8 in
- Medium firm
- Cooling green tea gel
- CertiPUR-US, fiberglass free
OhGeni Queen Air Mattress with Built-in Pump, 18-Inch Raised
Best for guests and camping. Inflates in about three minutes with the built-in pump and sits 18 inches off the floor, so it feels like a real bed.
- Queen, 18 in raised
- Built-in pump
- 800 lb capacity
- Waterproof PVC
Novilla 6-Inch Gel Memory Foam Mattress, Twin
Best budget twin. A slim gel memory foam twin that suits kids' rooms, bunk beds and trundles where a thick mattress won't fit.
- Twin, 6 in
- Gel memory foam
- Cooling
- CertiPUR-US
Zinus 8-Inch Green Tea Memory Foam Mattress, Twin
Best-known brand. Zinus's long-running green tea foam design in twin size, with both CertiPUR-US and OEKO-TEX certified materials.
- Twin, 8 in
- Green tea memory foam
- CertiPUR-US & OEKO-TEX
GAESTE 8-Inch Cooling Gel Memory Foam Mattress, Full, Medium Feel
Best for hot sleepers. Cooling gel memory foam with a medium feel, plus a machine-washable, anti-slip cover you can actually clean.
- Full size, 8 in
- Medium feel
- Cooling gel foam
- Washable cover
- Fiberglass free
Checking for Fiberglass in Your Mattress
Examining the Law Label
Every mattress sold in the United States comes with a law label at the time of purchase. In most cases, this tag will list all the materials inside the mattress. Before doing anything else, locate this label—usually stitched to the back or bottom of the mattress—and read the content list closely.
Reaching Out to the Manufacturer
Not sure what the materials listed on that tag actually are? If the information on the label isn’t clear, get in touch with the mattress manufacturer. They can provide you with the data you need. Be very specific with your questions regarding the materials, especially those related to fireproofing.
Looking at the Product Manual or Online Listing
The user manual that came with your mattress may have more detailed information about the mattress materials than the label offers. Alternatively, if you bought your mattress online, there might be detailed product descriptions and specifications listed on the website.
Considering High-Risk Factors
Certain types of mattresses are more likely to contain fiberglass than others. For example, memory foam mattresses are more frequently associated with fiberglass use due to their high flammability without a retardant. On the other hand, more expensive mattresses might use alternative fireproofing methods, such as wools or thistle.
Price Point and Mattress Type
Budget mattresses, particularly those that are shipped compressed in a box, tend to have higher chances of containing fiberglass. Their low-cost construction materials necessitate equally affordable fire retardants.
Product Recalls and Customer Reviews
Monitoring product recalls and scanning customer reviews can sometime highlight issues related to fiberglass presence. If consumers complain about itching or respiratory problems, it could be a telltale sign that the mattress contains fiberglass.
Proactive Steps to Prevent Fiberglass Exposure
If you have a fiberglass-containing mattress, there are preventive measures you can take to mitigate any potential risks.
Using Mattress Encasements or Protectors
Consider sealing your mattress with a quality, zippered mattress encasement designed to keep all particles, including fiberglass, contained inside the mattress.
Avoiding Removal of Mattress Covers
Many mattresses with fiberglass have mattress covers that are not intended to be removed. Removing the mattress cover can spread fiberglass throughout the living area.
Regular Checks for Wear and Tear
Regularly check your mattress cover for any rips or tears that may compromise the containment of the fiberglass.
Dealing with Fiberglass Contamination
If fiberglass has been released from your mattress, immediate and thorough cleaning is necessary to minimize exposure.
Clearing Out Fiberglass Exposed Areas
Vacuuming meticulously with a HEPA filter vacuum and wiping down all surfaces with wet cloths can help remove fiberglass particles. Be sure to dispose of the cleaning materials properly.
Professional Remediation Services
If a significant amount of fiberglass is released, it’s often best to seek the services of a professional cleaning team that specializes in this type of remediation.
Considering Replacement
Long-term, the safest option may be to replace the affected mattress with one that does not contain fiberglass, especially if there are ongoing concerns about its containment or safety.
Choosing Fiberglass-Free Mattresses
When shopping for a new mattress, you can specifically look for ones that are free from fiberglass.
Alternative Fire Retardants in Mattresses
Materials like wool, silica, or thistle are naturally fire-resistant and can be used as alternatives to fiberglass in mattress construction.
Certifications and Green Labels
Seek out mattresses that have certifications from organizations like CertiPUR-US, GOTS, or GOLS which ensure that the product meets rigorous environmental and health standards.
Doing Your Research
Reading product descriptions thoroughly and asking customer support about fire retardants can guide you to a safer mattress purchase.
Finishing Thoughts
Determining if your mattress contains fiberglass is crucial for your health and peace of mind. By examining the law label, contacting the manufacturer, and considering the type of your mattress, you can get a clearer idea of its composition. Remember, the cheapest option isn’t always the best when it comes to your health. Invest in a good-quality, fiberglass-free mattress and enjoy the peace of mind that comes with knowing you are sleeping in a safe environment.
