What Does Fiberglass Look Like On a Mattress? Is it Dangerous?

When it comes to choosing a mattress, comfort and price are often the first factors that come to mind. However, understanding the materials that make up your mattress is equally important. One such material that often raises questions is fiberglass. What does fiberglass look like on a mattress?

What Does Fiberglass Look Like On a Mattress

This synthetic fiber, known for its heat resistance and durability, is widely used in various industries, including mattress manufacturing. The use of fiberglass in mattresses is primarily due to its effectiveness as a fire barrier, helping mattresses meet federal flammability standards.

These standards require mattresses to resist ignition from a small open flame, a crucial safety measure to prevent or slow down the spread of fire in case of an accident.

What is Fiberglass and Why is it Used in Mattresses?

Fiberglass is a composition of fine fibers made from glass. (1) These fibers are intertwined to create a lightweight, flexible, and robust material. The use of fiberglass in mattresses is primarily due to its effectiveness as a fire barrier.

Federal flammability standards require mattresses to resist ignition from a small open flame. This is a crucial safety measure to prevent or slow down the spread of fire in case of an accident. Fiberglass, due to its heat-resistant properties, is an effective material to meet these standards.

It’s also relatively inexpensive and easy to work with, making it a popular choice among mattress manufacturers.

Does All Mattresses Have Fiberglass?

While fiberglass is a common material in the mattress industry, not all mattresses contain it. For example Saatva mattress does not use it, and is widely considered the best mattress without fiberglass.

Mattresses sold in the United States are required to meet federal flammability standards, and one way to meet these standards is by using a fire barrier like fiberglass. However, some manufacturers may use alternative materials to meet these standards.

To determine if your mattress contains fiberglass, you can check the manufacturer’s website or product documentation for mentions of fiberglass or related terms. 

Alternatively, you can inspect the law label attached to the mattress, which provides information about the materials used. If you’re still unsure, you can reach out to the mattress manufacturer directly and ask them.

What Does Fiberglass on a Mattress Look Like?


Identifying fiberglass on a bed can be challenging as it’s usually embedded within the mattress layers. However, if the mattress is damaged or improperly handled, fiberglass particles may become visible.

These particles are extremely tiny, resembling fine, translucent threads or powdery specks. They can easily become airborne due to their lightweight nature and cling to surfaces beyond the immediate vicinity of the mattress.

If you suspect your mattress contains fiberglass and it is damaged or shedding, take precautions such as wearing gloves and a mask while handling it and consider replacing it if necessary.

Also Read: Do Mattress Toppers Have Fiberglass?

What Causes Fiberglass on Mattress?

The presence of fiberglass in mattresses is primarily due to fire safety regulations. Mattress manufacturers use fiberglass to enhance the mattress’s fire-resistant properties and comply with safety standards.

Fiberglass serves as a protective layer that prevents the rapid spread of fire in case of an accident. It’s important to note that fiberglass itself is not harmful. However, the concern arises when it becomes exposed or released from the mattress.

If the mattress is damaged, torn, or improperly handled, fiberglass particles can be released into the environment. These particles are extremely tiny, resembling fine, translucent threads or powdery specks, which can be easily dispersed and become airborne.

What Part of a Mattress Has Fiberglass?

In a mattress, fiberglass is typically found in the form of a thin layer beneath the fabric cover. It is commonly used as a fire-resistant material and is incorporated into the construction of the mattress to enhance its safety.

The main parts of a mattress where you may find fiberglass include the fire barrier layer and the upholstery layer. The fire barrier layer is designed to meet fire safety regulations and prevent the rapid spread of flames in case of a fire.

In some mattresses, fiberglass may also be present within the upholstery layer, which provides cushioning and comfort and is located beneath the fabric cover but above the support system.

Health Risks Associated with Fiberglass in Mattresses

While fiberglass in mattresses serves an important fire-resistant function, it can pose health risks if not properly contained. Fiberglass particles can cause skin irritation, itching, and discomfort if they come into contact with the body.

Moreover, inhaling these particles can lead to respiratory issues, such as coughing, difficulty breathing, and irritation in the throat and lungs. Long-term exposure to fiberglass can lead to more serious health conditions, including lung diseases such as cancer and mesothelioma.

Therefore, it’s important to handle any damaged or exposed fiberglass in mattresses with utmost caution and take appropriate measures to minimize potential health risks.

How Do You Protect Yourself from Fiberglass in a Mattress?

Protecting yourself from fiberglass in a mattress involves several steps. First, handle your mattress with care to prevent any damage or tears that could release fiberglass particles. Consider using a mattress protector or encasement made of tightly woven fabric.

This can provide an additional barrier between you and the mattress, reducing the risk of fiberglass exposure. Regularly inspect your mattress for any signs of damage or wear, and if you notice any fraying or exposed fiberglass, take precautions and consider replacing the mattress.

Also, avoid removing the mattress cover, as this can potentially expose the fiberglass layer.

What to Do If Your Mattress Contains Fiberglass?

If you discover that your mattress contains fiberglass, it’s important to handle it with care. Do not attempt to remove the fiberglass yourself, as this can release fibers into the air, which can be harmful if inhaled or come into contact with your skin.

Instead, contact a professional cleaner who is experienced in handling fiberglass. They can safely remove the fiberglass from your mattress and dispose of it properly. If your mattress is significantly damaged or old, it may be safer and more cost-effective to replace it entirely.

How to Avoid Fiberglass in Mattresses

If you want to avoid fiberglass in your mattress, there are several strategies you can follow. Look for mattresses that are labeled as fiberglass-free. These mattresses use alternative fire barriers, such as wool or cotton, to meet federal flammability standards.

Also, mattresses made with natural materials, such as latex or organic cotton, do not require a fire barrier and are thus free from fiberglass. When shopping for a new mattress, ask the retailer or manufacturer directly about the materials used in the mattress, and specifically inquire about the presence of fiberglass.


Understanding the materials in your mattress, including fiberglass, is crucial for a safe and comfortable sleeping experience. While fiberglass serves an important function in fire resistance, it’s important to handle mattresses with care to prevent exposure.

If you suspect your mattress contains fiberglass, seek professional assistance for proper removal or disposal. Always prioritize your health and well-being when choosing and maintaining your mattress.

Read Next: Does Layla Mattress Have Fiberglass?

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