Simmons Bedding was founded in 1870 when Zalmon Simmons opened his first factory. Simmons did not start off making mattresses, however, but he started with telegraph insulators and boxes for cheese. As repayment for a debt, someone gave Simmons the patent for bedsprings. By 1889, Simmons was manufacturing mattresses with built in bedsprings. Simmons is one of the oldest companies in the US.
Today, the company is best known for their Beauty Rest brand of mattresses. In 2013, the company had annual revenue of $1.228 billion, which puts Simmons in 3rd place among mattress sales. In 2012, both Serta and Simmons were acquired by the private equity group Advent International.
Simmons and Serta account for a 34 percent share of the mattress market in the US, however, there are currently no plans to combine the two companies. Advent International maintains that the companies will maintain separate research, marketing, and developing departments.