Monticello Top Grain Leather Functional Sectional vs Banks Sleeper Sofa Foam: which is safer?

Where these two actually differ

• We flag Chromium and heavy metals in leather tanning, Formaldehyde in topcoat resins and finish treatments, Volatile organic compounds (VOC) from tanning and coating solvents and Degradation and leaching of foam fill and adhesives on the Abbyson 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 Abbyson.
• The Abbyson is Top grain leather upholstery where the Joybird is polyurethane foam, which is most of the difference in these two grades.
• We are less certain about the Abbyson grade, at 35% confidence against 72%, because it discloses less.