Sleep Number Corporation, together with its subsidiaries, provides sleep solutions and services in the United States. It designs, manufactures, markets, retails, and services beds, bases, and bedding accessories under the Sleep Number name. The company also offers adjustable bases under the FlextFit name; and pillows and sheets, as well as other bedding products, including mattresses, box springs, and foundations under the Sleep Number name. The company sells its products directly to consumers through retail, online, and phone, as well as through wholesale. As of December 30, 2017, it operated approximately 556 Sleep Number retail stores in 50 states. The company was formerly known as Select Comfort Corporation and changed its name to Sleep Number Corporation in November 2017. Sleep Number Corporation was founded in 1987 and is headquartered in Minneapolis, Minnesota.