Casper Review, Is Casper Non-Toxic?
PFAS Authority is a scoring system, not a laboratory. We do not test products ourselves. Grades are model-based, built from published ingredients, materials, certifications, brand disclosures and third-party lab results where they exist. See the rubric.
Across 5 graded products, Casper averages Good (62/100). On disclosure, the brand says nothing publicly about PFAS. 3 of its products grade Good or better. Grades are model-based estimates, not lab results.
Worth buying from Casper Good or better, safest first
Casper
Cloud One Mattress
Polyurethane foam, cotton/poly cover
Volatile organic compounds (VOCs) from polyurethane foam
Polyurethane foam mattresses routinely release low-level VOCs (formaldehyde, toluene…
Microplastic shedding from synthetic cover fibers
The polyester component of the cover may shed microfibers during use and washing, though…
Off-gassing from synthetic foam adhesives or glues
Polyurethane foam layers are often bonded using water-based or solvent-based adhesives…
Lower PFAS concern for core foam and fabric, though Casper doesn't disclose water-resistance treatment details.
⚠Risky category by default
Casper
One Mattress
polyurethane foam, polyester cover
Volatile organic compound (VOC) off-gassing from polyurethane foam
New polyurethane foam mattresses commonly emit trace VOCs during the first few days. The…
Polyester cover degradation and microfiber shedding
Polyester covers can shed microfibers with mechanical abrasion and washing over years of…
Mold and bacterial growth in absorbed moisture
Polyurethane foam absorbs moisture if not protected by a waterproof barrier. Wet foam…
Lower PFAS concern for standard foam mattress with no known PFAS triggers, though brand discloses nothing.
⚠Risky category by default
Casper
Element Mattress
Polyester/cotton blend cover, polyurethane foam core
VOC off-gassing from polyurethane foam
New polyurethane foam mattresses commonly emit VOCs (formaldehyde, benzene, toluene) for…
Flame retardants
US federal flammability standards require mattress covers to resist ignition…
Dust mite and mold accumulation over time
Not a chemical hazard but a hygiene concern: any mattress can harbor dust mites and mold…
Lower PFAS concern for standard foam mattress, though Casper provides no public PFAS disclosure.
⚠Risky category by default
Graded and flagged Poor and Bad, we’d swap these
Casper
Sleep Comfy Mattress Topper
Polyurethane foam, cotton/polyester blend cover
Volatile Organic Compound (VOC) off-gassing
Polyurethane foam commonly releases VOCs upon unpacking, particularly in the first 48…
Polyurethane foam degradation and particle shedding
Over time, polyurethane foam can break down and shed small particles, particularly at…
Dust mite and mold colonization
Foam toppers can retain moisture and harbor dust mites or mold if not kept clean and dry…
Lower PFAS concern for standard foam topper with no known water-repellent coating or stain treatment, unless you need verified PFAS-free assurance.
⚠Risky category by default
Casper
Cal King Mattress Protector
Polyester blend with waterproof/stain-resistant coating (unspecified chemistry)
PFAS
Casper has not disclosed the chemistry of the stain-resistant and waterproof coating.…
Coating degradation and leachables over time
Waterproof coatings on textiles degrade with repeated washing and body heat. As the…
Formaldehyde / VOCs
Polyester textiles and some waterproof finishes can be treated with formaldehyde-based…
Microplastics
Polyester textiles shed microfibers with washing and use. A mattress protector in direct…
Avoid until Casper discloses coating chemistry or certifies PFAS-free.
⚠Waterproof or stain-proof treatment
Every grade uses the same public rubric. How grades work →