Mattress Firm Upper East Side is located in New York NY, Zip Code: 10028 on the street of 336 E 86th St. If you want to ask something about the furniture, mattresses, catalog, pricing, hours and directions, the Phone number is 646-981-1093. The coordinates that you can use in navigation applications to find Mattress Firm Upper East Side quickly are 40.75398 -73.91752 USA