Purple Waterproof Mattress Protector Standard, Stain-Resistant, Comfort-First Design, Fits 8"-15.5" Mattresses, White, Cal King
Skip until coating details are disclosed; waterproof textiles commonly use PFAS.
This protector uses waterproof and stain-resistant coatings typical of PFAS products, but Purple offers no coating details or PFAS-free certification.
The better-graded swap
Brooklyn Bedding
Brooklyn Bedding Mattress Encasement, Twin
75/100 safety
Same rubric that flunked this product. The swap earned Excellent.
Still want this one anyway? Check the price on Amazon. We’d swap it.
Material
Textile with unspecified waterproof/stain-resistant coating
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
Is Purple Waterproof Mattress Protector non-toxic? What it is made of
Purple's mattress protector is a textile with an unspecified waterproof and stain-resistant coating. The fabric base is likely polyester or a polyester blend, which is standard for this category. The waterproof layer is the critical unknown, manufacturers typically use either PFAS-based fluorochemicals (Teflon-type coating, PFOA alternatives) or polyurethane/silicone for water repellency. Purple has not publicly disclosed which approach they use, making it impossible to rule out persistent, bioaccumulative chemicals in the coating.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
Vague safety claims only
Uses vague language ("eco-friendly", "clean") without a specific PFAS statement.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
PFAS
Waterproof textiles commonly rely on PFAS-based fluorochemicals for durability. Purple's silence on coating chemistry and lack of PFAS-free certification makes this hazard probable, not merely possible. PFAS accumulates in blood and organs with chronic exposure.
Source, ATSDR ↗Coating degradation and microplastic shedding
Repeated washing and friction degrade polyurethane and Teflon-family coating coatings over time. If the waterproof layer flakes or peels, the underlying polyester textile may shed microfibers, particularly if synthetic fill is exposed.
Formaldehyde / VOCs
No_known public testing of this specific product. Waterproof coatings and stain-resistant finishes sometimes use formaldehyde-releasing resins for durability, though modern water-resistant polyurethanes often avoid them. No OEKO-TEX or similar certification provided.
Source, ATSDR ↗Bacterial or mold growth if waterproof layer fails
If the waterproof coating delaminates or tears, moisture can become trapped between the protector and mattress, creating conditions for microbial growth. Regular inspection and prompt replacement mitigate this.
What’s reassuring
Azo dyes in white/colored polyester
White textiles typically require minimal dyeing; azo dye risk is low. Colored variants (if available) would carry higher theoretical risk, but no specific concerns are documented for Purple's white protector.
The full breakdown
The brand's record and disclosure
Purple is known for transparency in mattress foam composition (open-cell, gel-flex), but has remained silent on mattress protector coating chemistry despite industry-wide PFAS scrutiny. No third-party certifications (OEKO-TEX, GOTS) are advertised for this product, which limits independent verification. The brand has not published a PFAS phase-out commitment or coating-specific safety data sheets for consumers.
How it compares in its category
Most waterproof mattress protectors in this price range use PFAS-based coatings without disclosure; Purple is not an outlier but represents the industry norm of opacity. Premium competitors sometimes advertise PFAS-free or OEKO-TEX certification, though costs are typically 20-40% higher. Budget alternatives often have thinner coatings that degrade faster, shifting replacement frequency and cumulative exposure.
If you buy it
Air out the protector for 24-48 hours before use to off-gas any volatile coating compounds. Wash before first mattress contact if care instructions permit, though waterproof coatings may be sensitive to hot water. Check the tag for maximum wash temperature and dry cleaning restrictions. Replace if the waterproof layer flakes, cracks, or loses water repellency, as coating degradation can expose the polyester base and create microplastic shedding risk.
What we don’t know
- Basis
- Model estimate, 35% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Purple has made none
Formulations change between production runs, so check the current label. How we grade.
Better-graded alternatives in Mattress Protectors
Parachute
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- 100% linen, no reported coating
- We found no PFAS statement from the brand
- Heavy metals
3 hazards checked on this product. See all of them.
Brooklinen
Down Alternative Mattress Topper
- polyester down-alternative filling
- We found no PFAS statement from the brand
- Azo dyes and colorant migration
4 hazards checked on this product. See all of them.
Casper
Sleep Comfy Mattress Topper
- Polyurethane foam, cotton/polyester blend cover
- We found no PFAS statement from the brand
- Volatile Organic Compound (VOC) off-gassing
3 hazards checked on this product. See all of them.
More mattress protectors grades
How we score, every product runs through the same public 0-100 rubric based on materials, coatings, brand disclosure, lab findings, and recalls. See the full methodology → Spotted a mistake? Report an error.