Mattress Firm in Washington
- Auburn
- Bellevue
- Bellingham
- Bonney Lake
- Bothell
- Burlington
- Chehalis
- Clarkston
- Covington
- East Wenatchee
- Everett
- Federal Way
- Gig Harbor
- Issaquah
- Kennewick
- Kirkland
- Lacey
- Lakewood
- Longview
- Lynnwood
- Marysville
- Monroe
- Moses Lake
- Olympia
- Poulsbo
- Puyallup
- Redmond
- Renton
- Richland
- Seattle
- Sequim
- Silverdale
- Snohomish
- Spokane
- Spokane Valley
- Sumner
- Tacoma
- Tukwila
- Tumwater
- Vancouver
- Veradale
- Walla Walla
- Woodinville
- Yakima