Mattress Firm is located in Shirley NY, Zip Code: 11967 on the street of 1016 Montauk Hwy. If you want to ask something about the furniture, mattresses, catalog, pricing, hours and directions, the Phone number is 631-395-1216. The coordinates that you can use in navigation applications to find Mattress Firm quickly are 40.802453 -72.859224 USA