Lounge 93" Sofa vs Banks Sleeper Sofa Foam: which is safer?

Where these two actually differ

• We flag Flame retardants (brominated or phosphorus-based), Volatile organic compounds (VOCs) and off-gassing, Formaldehyde-releasing resins in batting or adhesives and Azo dyes and other synthetic colorants on the Crate and Barrel and not on the Joybird.
• We flag Volatile Organic Compound (VOC) Off-Gassing, Flame Retardant Chemical Content, Formaldehyde in Adhesives and Binders and Foam Degradation Over Time on the Joybird and not on the Crate and Barrel.
• The Crate and Barrel is Upholstered fabric, no treatment on record where the Joybird is polyurethane foam, 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.
• We are less certain about the Crate and Barrel grade, at 35% confidence against 72%, because it discloses less.