The most accurate answer depends on the mattress, country, and date.
For IKEA mattresses currently sold in the United States, the official information available on July 25, 2026 points to a rayon and polyester fire barrier rather than fiberglass. IKEA US says its mattresses and mattress sets have a fiber fire barrier made from rayon/polyester batting. It also says phosphorous-based inorganic salts are used only in some stitch-bond material and zippers 1.
That statement is stronger evidence than simply noticing that a product page does not mention fiberglass. It identifies the type of fire barrier used in the current US range. It is not, however, a timeless claim about every IKEA mattress ever made or every mattress sold by IKEA in another country.
One older US model is a confirmed exception. An archived IKEA US page for the discontinued ÅMSOSEN gel memory foam mattress, article number 104.887.50, listed its inner cover as 46% glass fiber, 32% viscose/rayon, and 22% nylon 2. IKEA therefore cannot be described accurately with a brand-wide "always fiberglass-free" or "all IKEA mattresses contain fiberglass" answer.
What current IKEA US model pages say
We checked three current adult mattresses representing foam, hybrid, and pocket-spring construction. The table applies only to the exact US configurations and article numbers shown.
| Current US listing checked | Materials and care disclosed by IKEA | What the disclosure supports |
|---|---|---|
| ÅKREHAMN medium-firm foam mattress, Full, article 905.928.37 | Polyester ticking, viscose/polyester filling, polypropylene lining, and polyurethane foams. IKEA says the outer cover is removable and machine washable. | No glass fiber is listed. The materials align with IKEA's separate US statement that its mattress fire barrier is rayon/polyester, but the model page does not use the words "fiberglass-free" 3. |
| ÅNNELAND medium-firm hybrid mattress, Queen, article 004.817.49 | Polyester, viscose, polypropylene, polyurethane foams, and steel pocket springs. IKEA says the outer cover is removable and machine washable. | No glass fiber is listed. This is a model-specific material list, not an independent laboratory analysis or a guarantee about another size, firmness, year, or market 4. |
| VALEVÅG medium-firm pocket-spring mattress, Queen, article 505.118.57 | Polyester ticking, viscose/polyester filling, polypropylene lining, polyurethane foam, and steel springs. The care section says not to wash the mattress cover and does not describe it as removable. | No glass fiber is listed. The care instructions do not give permission to unzip or remove the cover 5. |
A list that omits glass fiber is supporting evidence, but an omission alone is not proof that every hidden component was disclosed. The better current-US conclusion comes from combining the model page with IKEA's written description of the rayon/polyester fire barrier.
Product names are not precise enough on their own. Sizes and firmness options can have different article numbers, and construction can change over time. If avoiding any glass fiber is a purchase requirement, save the product page and obtain a written answer from IKEA for the exact article number before buying.
Why mattresses have a fire barrier
US mattresses are subject to two federal performance standards. One tests resistance to smoldering ignition from a lighted cigarette. The other measures the size of a fire during a 30-minute open-flame test. Their purpose is to reduce deaths and injuries from mattress fires 6.
These rules do not require fiberglass. They set fire-performance requirements and allow manufacturers to choose a compliant design. A statement that a mattress meets 16 CFR parts 1632 and 1633 therefore tells you that it met the applicable flammability requirements. It does not identify the fire-barrier material.
A fire barrier is also not the same as making a mattress fireproof. Keep mattresses away from smoking materials, candles, space heaters, and other ignition sources regardless of the barrier material.
How to identify an older or uncertain IKEA mattress
Start with the mattress itself rather than a current shopping page. Photograph every permanent label without removing the cover.
Look for:
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the IKEA product name and eight-digit article number
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the month and year of manufacture
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the country of manufacture and the country where it was sold
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the manufacturer or importer
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the model and prototype identification
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the complete material or filling statement
The federal flammability label is useful for matching a mattress to a production design. CPSC says it must include the manufacturer or importer, month and year of manufacture, model identification, prototype identification, compliance statement, and intended foundation arrangement 6. It is not a complete material inventory.
State law labels can add filling information. California, for example, requires inside filling materials to be listed in order of predominance by weight, while the separate federal label records flammability compliance and product identity 7. A law label may still describe filling rather than every cover, thread, adhesive, or barrier component. Treat it as one part of the evidence, not the final word.
Contact IKEA with the photographs and ask a narrow written question:
Does this exact mattress, article number [number], manufactured [month and year] and sold in [country], contain fiberglass, glass fiber, glass wool, or any glass-based textile anywhere in the cover, inner cover, fire barrier, stitching, or zipper? What material provides the fire barrier?
Keep the response with the receipt and label photos. A verbal answer about "IKEA mattresses" generally is less useful than a written answer tied to the exact unit.
What the old ÅMSOSEN disclosure means
The archived ÅMSOSEN page establishes that US article 104.887.50 was advertised with a 46% glass-fiber inner cover in the captured 2023 listing 2. It does not establish the composition of every ÅMSOSEN size or every IKEA mattress sold worldwide.
If you own that article number, leave the cover closed while you check the sewn labels and contact IKEA. If you own another discontinued model, do not assume it matches either ÅMSOSEN or the current US range. Use its own article number, manufacture date, market, and written material confirmation.
Do not use a zipper as permission to inspect
A zipper can mean that an outer cover is designed for washing, but it can also be part of assembly and not intended for routine removal.
For the current US ÅKREHAMN 905.928.37 and ÅNNELAND 004.817.49 listings, IKEA explicitly says the outer cover is removable and machine washable 3 4. Follow the instructions for the exact model, including the care label inside the cover. Removing a permitted outer cover is not permission to remove, cut, peel, or vacuum an inner cover or fire barrier.
For VALEVÅG 505.118.57, IKEA says the mattress cover should not be washed and does not describe it as removable 5. Keep it closed. Apply the same cautious default to any model whose instructions are missing or unclear.
General public-health advice often says never to unzip a mattress because some products have released glass fibers when opened 8. That is a sensible default for an unknown mattress. Exact manufacturer instructions take priority when they clearly identify a removable outer cover, but they do not authorize disturbing the layers underneath.
What certifications, studies, complaints, and recalls can prove
Evidence about mattress materials has different levels of reliability:
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A model-specific manufacturer disclosure can establish what the manufacturer says is in one exact product. The archived ÅMSOSEN disclosure is an example.
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A laboratory analysis can identify materials in the sampled unit. A 2022 study examined four newly purchased mattress covers and found glass fiber in the inner layers of two. It also found glass fibers in adjacent outer-cover material, which the authors considered a potential exposure route if a cover was opened. The sample was small and did not test IKEA mattresses, so it cannot establish the construction of any IKEA model 9.
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A consumer report, photograph, lawsuit, or safety complaint can identify a concern worth investigating. Without an exact label and reliable material analysis, it does not prove that every mattress with the same brand name or appearance uses the same construction.
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A recall applies to the models, dates, and hazards named in the notice. For example, IKEA recalled VYSSA SPELEVINK crib mattresses because they did not meet the federal open-flame standard. The notice did not identify fiberglass as the cause, and it says nothing about the current adult mattresses above 10.
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Flammability compliance shows performance under the applicable fire tests. It does not certify a mattress as fiberglass-free 6.
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CertiPUR-US, when shown, applies to flexible polyurethane foam rather than the complete mattress. California's public-health guidance specifically warns that it does not certify the safety or composition of other mattress materials 8.
This is why a certification badge or an unrelated complaint should not override exact model documentation.
What to do if you suspect loose fibers
If the cover is intact and you have only read a worrying post online, do not start a cleanup. Keep the mattress closed, identify it from the labels, and ask IKEA about the exact article number.
If you see shiny fibers coming through a tear or find suspected fibers around a damaged mattress:
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Stop handling, unzipping, cutting, or dragging the mattress. Keep children and pets away from the area.
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Photograph the damage, fibers, and labels without rubbing or sampling the material.
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Contact IKEA before moving the mattress. Ask for model-specific handling, return, or disposal instructions. A widespread release may justify professional assessment or cleanup.
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If the mattress must be removed, cover it first so fibers are less likely to spread. Do not force it into an encasement if doing so would disturb damaged material.
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For cleanup, California public-health guidance recommends eye protection, a mask covering the nose and mouth, and clothing that covers the skin. Use a HEPA-filter vacuum and damp wiping rather than sweeping. Wash affected sheets and clothing separately 8.
Fiberglass contact can irritate the skin and eyes. Small airborne fibers can irritate the nose, throat, and lungs 8. Leave the area if cleanup stirs up fibers. Seek prompt medical care for trouble breathing, persistent eye pain, or symptoms that do not settle after the exposure ends.
The bottom line
Current IKEA US information supports a non-fiberglass answer for the exact current models checked here. IKEA identifies the US mattress fire barrier as rayon/polyester batting, and the reviewed ÅKREHAMN, ÅNNELAND, and VALEVÅG material lists do not disclose glass fiber.
That answer should not be extended backward or worldwide. The archived US listing for ÅMSOSEN 104.887.50 explicitly included glass fiber in the inner cover. For an older, used, discontinued, or non-US mattress, verify the article number, manufacture date, market, labels, care instructions, and written IKEA response before removing any cover.
