Select Comfort Corporation—which makes Sleep Number adjustable beds—recently acquired a key competitor in a deal valued at $15.5 million.

Last week, the Plymouth-based company made headlines when it released its fourth-quarter financial results—which revealed a jump in sales and a decrease in net income. While announcing the results, Select Comfort revealed that it recently bought the business and assets of Comfortaire Corporation.

The purchase of Greenville, South Carolina-based Comfortaire, a manufacturer and marketer of “adjustable air-supported sleep systems,” closed January 17. Select Comfort bought Comfortaire from mattress manufacturer Park Place Corporation.