Do Lull Mattresses Have Fiberglass? (Everything You Need to Know in 2025)

A big 75% of consumers worry about what’s in their mattresses, especially harmful stuff like fiberglass.

This highlights just how crucial it is for mattress manufacturers to be transparent about the materials they use.

So, does Lull use fiberglass in their mattresses?

Lull used to include fiberglass in their mattresses, which worried a lot of people.

But good news—they’ve listened to those concerns and have now switched to safer materials. This means their mattresses are not only more comfortable but also safer for your home.

Let’s dive into what’s really going on with Lull mattresses today.

We are here to clear up any confusion and help you decide if a Lull mattress is the right fit for you.

What are Lull Mattresses? (Brief History & Brand Overview)

Lull is a direct-to-consumer mattress brand known for its eco-conscious approach and commitment to quality. The company offers a range of products, including two memory foam models and a hybrid model, as well as pillows, bedding, bed frames, and bed foundations.

Lull mattresses are designed with a focus on comfort, support, and cooling features. The brand is also recognized for its customer-friendly policies, such as a 365-night sleep trial and a lifetime warranty.

An Overview of Mattress Materials

Mattresses can be made from a variety of materials, each offering different benefits and drawbacks. The most common materials used in mattresses include:

• Memory Foam: This material is known for its ability to contour to the body, providing excellent pressure relief and support.

• Latex: Latex can be natural or synthetic and is appreciated for its firmness and support. It’s also more breathable than memory foam and rebounds quickly, reducing the sensation of sinking into the mattress.

• Innerspring: Traditional innerspring mattresses are made up of a layer of coils surrounded by layers of comfort material, which can include natural fibers or foam. They offer solid back support and are available in a wide range of firmness levels.

• Hybrid: Hybrid mattresses combine the comfort and pressure relief of foam mattresses with the support of innerspring mattresses. They offer excellent durability and are available in a variety of firmness levels[8].

What Are the Common Materials Used in Mattresses?

Here are the most commonly used materials in mattresses:

• Polyester: It is often used as a filler substance in pillowtop mattresses and mattress covers.

• Foam: There are many varieties of foam used in mattresses, such as memory foam, polyurethane foam, and viscoelastic.

• Wool: Some mattresses include natural materials like wool to provide extra cushion for the sleeper.

• Cotton: It is used on the surface of the mattress as well as the interior to keep the mattress plush and comfortable.

• Metal Coils: It is primarily used in innerspring mattresses to provide support.

What is Fiberglass?

Fiberglass is a common type of fiber-reinforced plastic. It’s made by twisting together small threads of glass and plastic, creating a strong, lightweight material.

The fibers can be randomly arranged, flattened into a sheet, or woven into glass cloth.

The plastic matrix may be a thermoset polymer matrix—most often based on thermosetting polymers such as polyester resin, or vinyl ester resin—or a thermoplastic.

Fiberglass is cheaper and more flexible than carbon fiber, and it’s stronger than many metals by weight.

It’s also non-magnetic and non-conductive, making it a versatile material used in a variety of applications, from cars and boats to surfboards and, yes, mattresses.

Why Is Fiberglass Used in Mattresses?

Fiberglass is used in mattresses primarily as a fire retardant. It’s a low-cost fire barrier material that helps manufacturers meet fire safety standards.

In the past, mattresses were made from foam that included flame retardants, but some of those chemicals have been linked to health issues such as cancer, hormone disruption, and behavioral problems in children. As a result, many companies have opted to use fiberglass instead, as it seemed like a safer and more affordable option.

Fiberglass may be present in the foam of the mattress or in the mattress cover. When the mattress cover is unzipped or removed, exposure to fiberglass can occur.

Health Concerns and Safety Issues Related to Fiberglass

While fiberglass is a useful material, it can pose health risks if not properly contained. If inhaled, fiberglass can irritate or damage the lungs.

Long-term exposure to fiberglass is associated with lung disease.

Other health effects from fiberglass exposure can include eye injuries and skin irritation.

Fiberglass in mattresses poses a health risk if the materials inside are not properly contained. For example, if the mattress cover is removed or damaged, fiberglass can escape and potentially be inhaled or come into contact with the skin.

So, should you be concerned if your mattress contains fiberglass? 

Not necessarily. When mattresses contain fiberglass, but the fiberglass is safely confined within the mattress cover, it doesn’t pose a serious health risk.

However, it’s important to keep the mattress in its original cover and avoid removing or damaging it to prevent exposure to fiberglass.

What Are Lull Mattresses Made of?

Lull mattresses are constructed with premium materials and high-quality memory foam that contours to your body’s unique shape, providing precision pressure point relief. The mattresses come with a 10-inch original foam mattress which is designed with a unique three-layer system:

1. First Layer: This layer is a 1.5-inch-thick gel-infused memory foam designed to absorb body heat and provide support.
2. Second Layer: The second layer is a 1.5-inch thick supportive foam transition layer.
3. Third Layer: The base layer is a 7-inch thick polyurethane foam foundation for spine alignment and preventing sagging.

Lull mattresses are CertiPUR-US® certified, that means they are made without ozone depleters, flame retardant chemicals, and heavy metals. They also have ultra-low VOC (less than 0.5 parts per million) and adhere to the highest standards.

Material	Composition	Certification
Top Layer	1.5” Gel-Infused Memory Foam	CertiPUR-US Certified
Foam Types	Proprietary Conventional Foam & Polyurethane Foam	Meets rigorous off-gassing standards
Cover Material	90% Polyester, 10% Rayon	Fire Retardant Backing
Queen Size Dimensions	60” x 80” x 10”	–

Do Lull Mattresses Have Fiberglass? (Official Statements from Lull on Fiberglass Usage)

Lull has stated that some mattresses utilize a fire retardant sock which may contain glass fibers.

However, it’s important to note that Lull mattresses do not use fiberglass anymore. Instead, they rely on an inherently fire-retardant fabric to meet safety standards.

This fabric is 90% polyester and 10% rayon, with a laminated fire retardant backing.

Lull still cautions sleepers against removing the mattress cover, as it removes the barrier protecting their mattresses’ foam layers.

This is a common practice among mattress manufacturers to ensure the safety and longevity of the product.

So, to answer your question, Lull mattresses do not contain fiberglass. In the past, they did use fiberglass to prevent fires.

Now, they have transitioned to using a fire-retardant fabric to meet safety standards while ensuring the comfort and safety of their customers.

How Do I Know if My Mattress Has Fiberglass?

If you are concerned about whether your Lull mattress contains fiberglass, here are some ways to find out:

#1- Check the Label 

All manufacturers are required to list the materials used in the mattress on the label. Look for a percentage of “glass fiber” as a listed material.

#2- Look at the Price 

If the mattress is significantly cheaper than others, it might be because cost-cutting materials like fiberglass have been used.

#3- Check Any Alternative Terms 

Some brands may refer to fiberglass as “glass wool,” “silica,” or “glass fiber” to avoid explicitly saying they use fiberglass.

#4- Do Not Remove the Cover 

The only way to see fiberglass in a mattress is by removing or damaging the cover, which is not recommended as it can expose you to the fibers.

#5- Look for Physical Signs 

Fiberglass fibers may occasionally be visible on the surface of the mattress. Touching the mattress may also cause it to feel different due to the presence of fiberglass.

#6- Contact the Manufacturer 

If the label does not specify whether the mattress contains fiberglass, you can reach out to the company to inquire.

#7- Check the Website or Care Manual 

Some manufacturers may list the materials used in their mattresses online or in the product’s care manual.

It is highly recommended never to remove or damage the cover of your mattress to check for fiberglass, as this can expose you and your home to fiberglass particles and cause some serious skin rashes such as skin irritation and respiratory problems etc.

How to Choose a Mattress without Fiberglass?

Choosing a mattress without fiberglass can be a bit tricky, but with the right knowledge and approach, you can find a mattress that suits your needs and ensures your safety. Here are some tips to help you out:

Labels and Certifications

When shopping for a Lull or any mattress, pay close attention to the labels and certifications. Look for mattresses that are CertiPUR-US® certified or GREENGUARD Gold certified.

These certifications ensure that the mattress is made without harmful chemicals, including fiberglass.

• CertiPUR-US® certified mattresses are made without ozone depleters, PBDEs, TDCPP or TCEP (“Tris”) flame retardants, mercury, lead, and other heavy metals. They are also made without formaldehyde, phthalates regulated by the Consumer Product Safety Commission, and have low VOC (Volatile Organic Compound) emissions for indoor air quality.

• GREENGUARD Gold-certified mattresses meet strict criteria for low emissions of volatile organic compounds (VOCs) into indoor air. They are also screened for more than 10,000 chemicals and VOCs that are commonly known to pollute indoor air.

Importance of Non-Removable Mattress Covers

A non-removable mattress cover is crucial in preventing the release of fiberglass if it is used in the mattress.

Even if a mattress contains fiberglass, as long as the cover is not removed or damaged, the fiberglass should not pose a health risk.

Therefore, look for mattresses with non-removable covers or mattresses that explicitly state not to remove the cover.

Research, Reviews, and Transparency

Before purchasing a mattress, do your research. Read reviews and check the manufacturer’s website for detailed information about the materials used in the mattress.

If the information is not clear, don’t hesitate to contact the manufacturer directly and ask if their mattresses contain fiberglass.

Transparency is key when it comes to choosing a mattress. Companies that are open about their materials and manufacturing processes are generally more trustworthy.

If a company is not transparent about whether their mattresses contain fiberglass, it might be best to consider other options.

Alternatives to Fiberglass in Mattresses

Fiberglass is often used in mattresses as a flame retardant. However, it can cause health concerns if exposed, leading many people to seek alternatives. Here are some popular alternatives:

1. Wool: Wool is a natural flame retardant and can also provide a soft and comfortable feel.
2. Cotton: Cotton, especially when organic, is a safe and comfortable alternative to fiberglass.
3. Polyester: This synthetic material is often used as a safe alternative to fiberglass.
4. Rayon: This semi-synthetic material is derived from regenerated cellulose and is used as a chemical-free flame retardant.
5. Silica: Some brands, like Amerisleep, use silica instead of fiberglass for safety and comfort.

Material	Type	Benefits
Fiberglass	Flame retardant	Inexpensive, meets safety standards
Silica	Natural fiber	Non-toxic, eco-friendly
Wool	Natural fiber	Non-toxic, moisture-wicking
Plant fibers	Natural fiber	Biodegradable, reduces chemicals

Safe and Eco-Friendly Mattress Materials

If you are looking for eco-friendly and safe materials for your mattress, you can consider these options:

1. Kapok: This is a natural, fluffy plant fiber that is often used as a down alternative.
2. Organic Wool: Wool is not only comfortable but also naturally flame-retardant.
3. Organic Cotton: Cotton is breathable, comfortable, and when organic, free from harmful pesticides.
4. Natural Latex: This material is derived from the sap of rubber trees and is both comfortable and durable.
5. Hemp: Hemp is a highly sustainable material that is also durable and breathable.
6. Recycled Steel Coils: These are often used in the support layers of eco-friendly innerspring and hybrid mattresses.

Can Mattress Off-Gassing Make You Sick?

Off-gassing refers to the release of volatile organic compounds (VOCs) from a new mattress, which can cause an unpleasant smell.

While off-gassing odors pose no known serious health risks, they can be unpleasant and may cause symptoms like headaches, nausea, or dizziness, especially for those who are sensitive to scents.

People with respiratory issues such as asthma or allergies could experience irritation of the airway and difficulty breathing.

However, these symptoms are usually temporary and can be mitigated by airing out the mattress properly.

What Makes Lull Mattresses Unique?

Lull mattresses are known for their premium responsive memory foam that contours to your body’s shape while you’re on it and bounces back to its original form when you’re not.

Here are some unique features of Lull mattresses:

• Motion-isolating technology: This ensures that movement on one side of the bed doesn’t disturb anyone or anything else on the bed.

• Cooling technology: The top layer of the mattress is designed to keep you cool all night long.

• 365-night trial and lifetime warranty: Lull offers a stress-free trial period of 365 nights. If you don’t love it within the first 365 nights, they’ll arrange a quick and easy return. Plus, the Lull mattress is backed by a lifetime warranty.

How to Deal with Fiberglass Exposure?

If you suspect that you’ve been exposed to fiberglass from your mattress, it’s important to take immediate action to minimize potential health risks. 

Steps to Take if You Suspect Fiberglass in Your Mattress

Here are some steps you should take:

Step #1- Stop Using the Mattress 

If you suspect your mattress contains fiberglass and you’re experiencing symptoms of exposure, stop using the mattress immediately.

Step #2- Clean the Area 

Clean the area thoroughly to remove any fiberglass particles. Use a vacuum cleaner with a high-efficiency particulate air (HEPA) filter to clean the room. Avoid sweeping or dusting, as this can stir up the fibers and make them airborne.

Step #3- Wash Your Skin 

If you have fiberglass on your skin, wash the area with warm water and mild soap. Avoid scrubbing or scratching the skin, as this can push the fibers deeper into the skin.

Step #4- Seek Medical Attention 

If you’re experiencing severe symptoms such as difficulty breathing or persistent skin irritation, seek medical attention immediately.

Step #5- Contact the Manufacturer 

If you suspect your mattress contains fiberglass, contact the manufacturer for confirmation. They should be able to provide information about the materials used in the mattress.

Step #6- Consider a New Mattress 

If your mattress does contain fiberglass and you’re concerned about exposure, it may be time to consider a new mattress. Look for mattresses that are free from harmful chemicals and materials, and always read the labels and product descriptions carefully.

Final Thoughts

Lull mattresses do not contain fiberglass. They have transitioned to using an inherently fire-retardant fabric, which is 90% polyester and 10% rayon, with laminated fire-retardant backing. This ensures the comfort and safety of their customers.

Lull mattresses are known for their high-quality memory foam and cooling technology, providing a comfortable and restful sleep experience.

When purchasing a mattress, it is crucial to make informed decisions. Always do your research, read reviews, and don’t hesitate to contact the manufacturer if you have any questions or concerns.

Frequently Asked Questions (FAQs)