Mattress Firm Northgate Clearance is located in Seattle WA, Zip Code: 98125 on the street of 809 NE Northgate Way. If you want to ask something about the furniture, mattresses, catalog, pricing, hours and directions, the Phone number is 206-364-8150. The coordinates that you can use in navigation applications to find Mattress Firm Northgate Clearance quickly are 47.70827 -122.32016 USA