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Products Archive - Mark's Mattress Outlet

mattressstoreslosangeles.com

Diamond Dreamstage Value Collection Topaz Firm Tight Top 7" Mattress Diamond Mattress is a 4th-generation family-owned company that has been handcrafting mattresses in Southern California since 1946. Founded by the Pennington family in Compton, California (now headquartered in Rancho Dominguez), Diamond is one of the few mattress manufacturers in America that is fully vertically integrated. They make their own pocketed coils, process their own memory foams, and cut and sew their own fabrics — all under one roof. This level of control over every component means Diamond can maintain strict quality standards that outsourced manufacturers cannot match. Every Diamond mattress is CertiPUR-US certified, GREENGUARD Gold certified for low chemical emissions, OEKO-TEX tested for harmful substances, and ECO INSTITUT certified for environmental safety. Diamond also uses REPREVE recycled fibers in select products, demonstrating their commitment to sustainable manufacturing practices. Technology & Construction The Diamond Dreamstage Value Collection Topaz Firm Tight Top 7" Mattress is built in Diamond’s Southern California factory using their proprietary manufacturing processes. Diamond is one of the few mattress companies that makes their own pocketed coils, processes their own memory foams, and sews their own fabrics in-house. This vertical integration gives them direct control over every component and the ability to innovate faster than brands that rely on third-party suppliers. The mattress features CertiPUR-US certified foams, ensuring they meet strict standards for content, emissions, and durability. GREENGUARD Gold certification confirms low chemical emissions for a healthier indoor environment. Who This Mattress Is Best For The firm comfort level is designed for back sleepers and stomach sleepers who need a flat, supportive surface that prevents the hips from sinking below neutral alignment. Heavier sleepers (200+ lbs) often prefer firm mattresses because they maintain su