Therm-a-Rest Review, Is Therm-a-Rest Non-Toxic?
Therm-a-Rest averages 20 out of 100 on PFAS Authority's PFAS and toxin screen across the single Therm-a-Rest product graded as of October 2026, which does not reach its 70 point pass mark.
Therm-a-Rest grades Bad on our four-band scale. On disclosure, the brand says nothing publicly about PFAS. See what every brand has published about PFAS for how that compares.
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.
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- Bacterial growth in spent cartridges
3 hazards checked on this product, all on its full breakdown.
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- RO membrane, carbon filters, stainless steel housing
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- Bacterial and microbial growth in housing and filters
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Avocado
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- organic cotton, natural latex, coconut coir, recycled steel coils
- The brand calls it PFAS-free, which we have not verified
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2 hazards checked on this product, all on its full breakdown.
Which Therm-a-Rest products contain PFAS? Poor and Bad, we’d swap these
- Synthetic insulation + nylon shell with water-repellent coating treatment
- We found no PFAS statement from the brand
- PFAS. The nylon shell's water-repellent coating finish composition is undisclosed. Patagonia has phased PFOA…
3 hazards checked on this product, all on its full breakdown.
Find an alternative on AmazonTherm-a-Rest and PFAS, common questions
- Does Therm-a-Rest have PFAS?
- Therm-a-Rest averages 20 out of 100 on PFAS Authority's PFAS and toxin screen across the single Therm-a-Rest product graded as of October 2026, which does not reach its 70 point pass mark. Grades are model-based estimates built from published materials, ingredients and disclosures, not lab tests.
- Is Therm-a-Rest non-toxic?
- No Therm-a-Rest product we graded reaches Good. The best of them is Therm-a-Rest Polar Ranger Sleeping Bag at 20/100.
- Which Therm-a-Rest products should I avoid?
- The lowest-graded Therm-a-Rest products we have scored are Therm-a-Rest Polar Ranger Sleeping Bag. Each one links to the evidence behind its grade.
Every grade uses the same public rubric. How grades work →