Sleep Train is one of the top three mattress retailers in the United States and the largest on the West Coast. It was founded by Dale Carlsen in June 1985. Sleep Train stores carry mattresses manufactured by Sealy, Stearns & Foster, Simmons, Vera Wang by Serta, and Tempur-Pedic. Sleep Train also carries headboards by Fashion Bed Group and Modus International, as well as a variety of bedding accessories. It is based in Rocklin, California. Since 2006, owner The Sleep Train Inc. has also owned the Sleep Country USA chain, in the Pacific Northwest, and Sleep Country USA, Inc., is a subsidiary of Sleep Train.
The Mattress Firm Amphitheatre (formerly known as the Sleep Train Amphitheatre, Coors Amphitheatre and the Cricket Wireless Amphitheatre) is a 20,500-seat amphitheatre located in Chula Vista, California adjacent to Aquatica San Diego. It is one of the larger concert venues in the San Diego area. The venue is currently owned and operated by Live Nation.