Organic Cotton Mattress Cover and Pad Protector vs Cal King Mattress Protector: which is safer?
Organic Cotton Mattress Cover and Pad Protector is the clear pick. Cal King Mattress Protector carries a failing PFAS grade, and we never recommend buying a failing product.
Our pick
Avocado Green Mattress
Organic Cotton Mattress Cover and Pad Protector
PFAS grade
Excellent 85/100
Overall grade
Excellent 85/100
Verdict
Buy
Hazard flags
none flagged
Material
organic cotton
Confidence
78%
Cal King Mattress Protector
PFAS grade
Poor 30/100
Overall grade
Bad 0/100
Verdict
Skip
Hazard flags
⚑ 4
Material
Polyester blend with waterproof/stain-resistant coating (unspecified chemistry)
Confidence
35%
PossiblePFAS in waterproof coating
LikelyCoating degradation and leachables over time
PossibleFormaldehyde resins in polyester blend or coating
Where these two actually differ
- We flag PFAS in waterproof coating, Coating degradation and leachables over time, Formaldehyde resins in polyester blend or coating and Microplastics or fiber shedding on the and not on the Avocado Green Mattress.
- The Avocado Green Mattress is organic cotton where the is Polyester blend with waterproof/stain-resistant coating (unspecified chemistry), which is most of the difference in these two grades.
- The gap is 55 points, wide enough that this is not a close call, and the Avocado Green Mattress is the one to buy.
- We are less certain about the grade, at 35% confidence against 78%, because it discloses less.
Both products run through the same public rubric, which covers materials, coatings, brand disclosure, lab findings, and recalls, plus a beyond-PFAS hazard analysis. Grades are model-based estimates, not lab tests. How grades work →
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