Sleepy's · Mattress Protectors
Sleepy's Bedding Waterproof Mattress Protector
Coating chemistry not disclosed. Water-repellent treatments historically linked to PFAS.
This mattress protector has a waterproof coating of polyurethane or unspecified water-repellent coating treatment. The brand has no PFAS statement on record. water-repellent coating coatings have historically used PFAS, and the specific chemistry of this coating is not stated.
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
Waterproof coating (polyurethane or unspecified water-repellent coating treatment)
Brand disclosure
Brand is silent on PFAS
Lab data
No public lab test
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Is Sleepy's Bedding Waterproof Mattress non-toxic? What it is made of
Sleepy's Bedding Waterproof Mattress Protector uses a polyurethane or unspecified water-repellent coating (water-repellent coating) treatment to create a moisture barrier. Polyurethane itself is a stable plastic polymer when properly formulated and has no known acute toxicity risk in finished form. However, the specific chemistry of the waterproof coating is not disclosed publicly, which prevents independent verification of whether PFAS chemicals (perfluorinated compounds used to enhance water resistance) are present. Without transparency, buyers cannot assess the safety of the product's core function.
What’s concerning
Category baseline
The starting point for this type of product, before anything specific to this product is counted.
No PFAS disclosure
No public statement from the brand about PFAS in this product.
Waterproof / stain-resistant treatment
Water-repellent coating treatments have historically used PFAS.
PFAS
Brand received a poor PFAS safety grade (30/100) and has not disclosed coating chemistry. PFAS in mattress protectors can leach into sweat and body contact over time and persist in the environment after disposal.
Source, ATSDR ↗Polyurethane off-gassing (VOCs and unreacted monomers)
New polyurethane products can release volatile organic compounds (VOCs) and unreacted isocyanates during the first weeks of use, especially if the product is not fully cured. Risk is low for most users but elevated for those with respiratory sensitivity or asthma.
Coating degradation and leaching from heat exposure
Polyurethane coatings degrade when exposed to sustained heat, sunlight, or mechanical wear, which can release degradation byproducts into the mattress or surrounding air. Regular washing and avoiding direct heat exposure minimize this risk.
Lack of third-party safety certification
No OEKO-TEX, GOTS, GREENGUARD, or similar certification is on record for this product. Without independent testing or audit, chemical safety claims cannot be independently verified.
What’s reassuring
Microplastic shedding from synthetic coating
Polyurethane mattress protectors do not typically shed microplastics into bedding or air under normal use, as the coating is a solid film, not a fiber. Risk is negligible compared to synthetic textiles.
The full breakdown
The brand's record and disclosure
Waterproof Inc. has not publicly disclosed the chemical composition of its waterproof coating or taken a stance on PFAS avoidance. The brand has received a poor PFAS safety grade (30/100) based on available information, indicating either confirmed PFAS presence or high likelihood given industry norms. No independent certifications (such as OEKO-TEX, GOTS, or GREENGUARD) are on record for this product, and no safety recalls or controversies have been documented, but the absence of transparency is itself a red flag in a category where PFAS exposure is a known concern.
How it compares in its category
Most waterproof mattress protectors rely on either polyurethane (which varies in PFAS-related composition) or polyethylene film. Brands that explicitly avoid PFAS or carry third-party certifications (e.g., Naturepedic, some Saatva models) cost more but provide chemical assurance. Sleepy's Bedding Waterproof Mattress Protector sits in a mid-market positioning but without the disclosure or certification that justifies that price point compared to transparent competitors. The lack of brand communication about coating safety puts it at a competitive disadvantage in a category where buyers increasingly demand PFAS-free options.
If you buy it
Inspect the product before first use and verify no chemical odor (indicating potential off-gassing of uncrosslinked polyurethane or solvents). Wash and dry the protector separately before placing on the mattress to allow any volatile compounds to release in fresh air. Keep it away from direct heat sources (radiators, sunlight through windows) as polyurethane can degrade and leach over time when exposed to sustained warmth. Replace the protector every 3-5 years or sooner if waterproofing fails (water seepage, cracking, or loss of water beading). Contact Waterproof Inc. directly to request material safety data sheets (MSDS) and PFAS disclosure before purchasing to inform your decision.
What we don’t know
- Basis
- Model estimate, 42% confidence, not a lab result
- Lab test
- None on record for this exact product
- Brand statement
- Sleepy's has made none
Formulations change between production runs, so check the current label. How we grade.
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Find an alternative on AmazonMore 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.