Mattress Firm Yakima South is located in Yakima WA, Zip Code: 98903 on the street of 2107 S 1st St. If you want to ask something about the furniture, mattresses, catalog, pricing, hours and directions, the Phone number is 509-469-8550. The coordinates that you can use in navigation applications to find Mattress Firm Yakima South quickly are 46.572217 -120.488384 USA