Mattress Firm - Hay Creek Shops Share: Home Furnishings Mattress Firm - Hay Creek Shops Visit Website 1495 East LaSalle Drive Bismarck, ND 58503 (701) 751-1380 About Map About America's #1 specialty mattress retailer. We carry all the top brands like Sealy and Tempur-Pedic. Locally owned and operated. What's Nearby? Distance: 5 10 15 20 25 50 mi.