Mattress Firm is located in West Islip NY, Zip Code: 11795 on the street of 187 Sunrise Hwy. If you want to ask something about the furniture, mattresses, catalog, pricing, hours and directions, the Phone number is 631-792-1403. The coordinates that you can use in navigation applications to find Mattress Firm quickly are 40.719757 -73.305988 USA