Premium Mattress Topper vs Waterproof Quilted Mattress Protector Breathable Bed Cover Fitted Sheet For Bedroom Furniture Protection Cooling Topper Purple: which is safer?

Where these two actually differ

• We flag Volatile Organic Compounds (VOC) off-gassing from polyurethane foam, Polyester cover degradation and microfiber shedding, Polyurethane foam degradation and chemical leaching with age and Water-resistant coating composition (undisclosed) on the Helix and not on the Purple.
• We flag PFAS in waterproof coating, Azo dyes in polyester fabric, Microplastics from fabric shedding during washing and Coating degradation and leaching with age and heat on the Purple and not on the Helix.
• The Helix is polyurethane foam, polyester cover where the Purple is Quilted polyester blend with waterproof/breathable coating (unspecified), which is most of the difference in these two grades.
• The gap is 40 points, wide enough that this is not a close call, and the Helix is the one to buy.
• We are less certain about the Purple grade, at 35% confidence against 72%, because it discloses less.