Assertion: foam's material | /r/ObjectUse | used in mattress
Facets:
Source sentences:
text: The material is virtually silent, and, when used in mattresses, can effectively minimize motion and isolate to certain areas of the bed; these two factors can significantly reduce nighttime disruptions.
text: CBC news reported a lethal fire in Rhode Island resulting from polyurethane foam insulation, the same material used in sofas and mattresses, that created an inferno of searing heat and thick, toxic smoke.