Come see Mattituck Musical Theater Company's 3rd production: Once Upon A Mattress! This is the musical version of the heartwarming fairytale of the Princess and the Pea, where one small pea determines a true princess. Or is it the pea after all? Tickets are available only at the door, and are $10 for General Admission and $5 for Students. "And they all lived happily, happily, happily ever after!"