No, Brooklyn Bedding mattresses do not contain fiberglass in any portion of the mattress. When we chatted with Brooklyn Bedding about whether or not their mattresses contain fiberglass, here is how they responded:
All mattresses are required by the federal government to use a type of FR (Fire Retardant Barrier). To ensure we follow this requirement, but also to ensure a healthy environmentally friendly product we use a hydrated silica fiber sock around our mattress as our FR material. This material does not contain fiberglass and is non-toxic with no sprays. One other thing to note is that hydrated silica is the same thing that is used in toothpaste and is not harmful.”