Houston-based mattress retailer, Mattress Firm, announced Oct. 5 it will close 600 to 700 stores nationwide, including two locations in Northwest Austin and one in North Austin. The three Northwest Austin stores set to close are located at 13915 Research Blvd., Austin, 9705 Research Blvd., Ste. A, Austin, and 3200 W. Anderson Lane, Ste. 101, Austin. Anderson: 512-459-5599, 9705 Research: 512-605-6513, 13915 Research: 512-331-6470. www.mattressfirm.com