The Sleep Train Inc. has acquired two additional mattress store companies. The local retailer signed a deal Thursday to purchase 20 stores in Washington state and one in Idaho, Dale Carlsen, the company’s founder and chief executive officer, told the Business Journal on Friday. More acquisitions may be on the way, he said.

In a cash deal, Sleep Train bought Mattress Outlet, a 14-store company with 13 stores in eastern Washington and one in Idaho, and America’s Mattress, a seven-store company in western Washington.
The price was not disclosed. Neither was revenue for the acquired companies.

The acquisitions follow Sleep Train’s purchase in September of Christian’s Mattress Xpress, a retailer with three stores in the Central Valley region.
This has been Sleep Train’s biggest acquisition year since 2006, Carlsen said. That’s when Sleep Train spent $55 million to buy the 55-store chain Sleep Country USA.