Hours Of Operations Mattress Firm Indiana Michigan City Mattress Firm Hours of Operation and Locations in Michigan City, IN 4.8 - 220 votes 1 Locations in Michigan City www.mattressfirm.com Mattress Firm Hours Category: Home & Garden Mattress Firm - Michigan City, IN 46360 421 Franklin St(219) 879-8250 View Store Details Explore Michigan CityView More Apparel TJ MaxxColdwater CreekBig LotsCarharttCarter's Sports NikeSkechersAdidasReebokNorth Face Jewelry Hobby LobbyZalesKohl's OutletKay JewelersChico's Recommend For You Mickey Shorr Milestones Milwaukee PC Mori Luggage & Gifts MyEyeDr New Seasons Market Old Time Pottery Pac Sun Pacific Sunwear Party Depot