Organic Hybrid Mattress vs One Mattress: which is safer?
Avocado Organic Hybrid Mattress is our pick: better on PFAS and on the overall hazard picture.
Our pick
Avocado
Organic Hybrid Mattress
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleVolatile Organic Compound (VOC) off-gassing
PossibleLatex allergy contact risk
PossibleMold or microbial growth from moisture retention
Casper
One Mattress
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossibleVolatile organic compound (VOC) off-gassing from polyurethane foam
PossiblePolyester cover degradation and microfiber shedding
PossibleMold and bacterial growth in absorbed moisture
Where these two actually differ
- We flag Volatile Organic Compound (VOC) off-gassing, Latex allergy contact risk and Mold or microbial growth from moisture retention on the Avocado and not on the Casper.
- We flag Volatile organic compound (VOC) off-gassing from polyurethane foam, Polyester cover degradation and microfiber shedding and Mold and bacterial growth in absorbed moisture on the Casper and not on the Avocado.
- The Avocado is organic cotton, natural latex, wool, innerspring coils where the Casper is polyurethane foam, polyester cover, which is most of the difference in these two grades.
- The gap is 25 points, wide enough that this is not a close call, and the Avocado is the one to buy.
Both products run through the same public rubric: 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 →
More mattresses: see the full ranking