Hours Of Operations Mattress Firm New Hampshire Portsmouth Mattress Firm Hours of Operation and Locations in Portsmouth, NH 4.8 - 220 votes 1 Locations in Portsmouth www.mattressfirm.com Mattress Firm Hours Category: Home & Garden Mattress Firm - Portsmouth, NH 03801 2001 Woodbury Ave(603) 422-0982 View Store Details Explore PortsmouthView More Apparel MarshallsTJ MaxxBig LotsH & MCarhartt Sports Dick's Sporting GoodsLululemon AthleticaEastern Mountain SportsDelia'sBauer Hockey Jewelry MarshallsKay JewelersJared - Galleria of JewelryAlex and Ani Recommend For You Mickey Shorr Milestones Milwaukee PC Mori Luggage & Gifts MyEyeDr New Seasons Market Old Time Pottery Pac Sun Pacific Sunwear Party Depot