With over 800 showrooms located primarily in the northeast, Sleepy's is one of the largest mattress retailers in the United States. Founded in 1957, currently with stores in in Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New York, New Jersey, North Carolina, Pennsylvania, Rhode Island, Vermont, Virginia, and West Virginia. Sleepy's has 7 distribution centers located in New York, New Jersey, North Carolina, Massachusetts, Maryland, Connecticut, Florida and Northern California.