Therm-a-Rest Polar Ranger Sleeping Bag vs Wawona Bed Double Sleeping Bag: which is safer?
Therm-a-Rest Polar Ranger Sleeping Bag is our pick: better on PFAS and on the overall hazard picture.
Our pick
Patagonia
Therm-a-Rest Polar Ranger Sleeping Bag
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
PossiblePFAS in water-repellent coating
PossibleSynthetic fiber shedding and microfiber release
PossibleMold and bacterial growth if stored wet
The North Face
Wawona Bed Double Sleeping Bag
PFAS grade
Overall grade
Verdict
Hazard flags
Material
Confidence
LikelyPFAS in water-repellent coating water-repellent finish
PossibleFormaldehyde or antimicrobial resins in polyester coating
PossibleAzo dyes or heavy metals in polyester dye lots
Where these two actually differ
- We flag PFAS in DWR coating, Synthetic fiber shedding and microfiber release and Mold and bacterial growth if stored wet on the Patagonia and not on the The North Face.
- We flag PFAS in DWR water-repellent finish, Formaldehyde or antimicrobial resins in polyester coating, Azo dyes or heavy metals in polyester dye lots and Microfiber shedding on washing on the The North Face and not on the Patagonia.
- The Patagonia is Synthetic insulation + nylon shell with DWR treatment where the The North Face is polyester shell with DWR water-repellent finish, which is most of the difference in these two grades.
- These two are level, close enough that price and fit should decide it rather than our grade.
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 sleeping bags: see the full ranking