In late 2023 Leesa removed fiberglass from the construction of all of their mattresses. At present, no Leesa mattress models contain any fiberglass.
U.S. law requires mattress manufacturers to use a fire barrier. Fiberglass is cheap and effective, but it may cause respiratory problems, itching, eye irritation, and other health issues if it leaks outside of the mattress.
TIP: Check out this comparison table to see which mattress brands use fiberglass and which ones use a natural fire barrier, such as hydrated silica.
