If you are looking for a heavy-duty, old-school, double-sided flippable mattress then Gold Bond is for you! Gold Bond is a family-run American-made company that has been making mattresses since 1899! The Cambridge Black Series Firm features an edge-to-edge 13 gauge Bonnell Body Balance Innerspring with 7″ edge guards for anti-roll stability and full-body support. Heavy insulator pad extends the mattress life. It’s upholstered with Gold Bond’s custom blended “joy” cotton batting. Topped with a non-quilted, lace tufted grey damask. This mattress is built to last.