Mattress Firm is the largest specialty mattress retailer in the United States, operating over 2,300 stores across 49 states as of December 2024 . Founded in 1986 and headquartered in Houston, Texas, the company offers a wide selection of mattresses and sleep products from leading brands, including Tempur-Pedic, Sealy, and Serta . In February 2025, Mattress Firm was acquired by Tempur Sealy International for approximately $5 billion, forming Somnigroup International, the world's largest bedding company . The acquisition aims to enhance the company's omni-channel strategy and expand its retail footprint.