Mattress Firm is located in Sumner WA, Zip Code: 98390 on the street of 4095 142nd Ave E. If you want to ask something about the furniture, mattresses, catalog, pricing, hours and directions, the Phone number is 253-470-0980. The coordinates that you can use in navigation applications to find Mattress Firm quickly are 47.11143 -122.29904 USA