The original script called for Burnett to have the curtains tossed haphazardly over her shoulders, but Mackie decided that it would be funnier to create an actual dress and leave the hanger intact across her shoulders. He is slightly bitter all these years later that of all his magnificent creations, that “joke” dress has become his signature piece; of all the memorable glamorous gowns he’s created for celebrities over the decades, that curtain rod dress is the one that hangs in the Smithsonian.
Carol Burnett was appearing on The Garry Moore Show on television at the same time as she was starring in Once Upon a Mattress. This caused some crazy antics. According to Burnett, the double duty meant she got less than an hour of sleep some nights. During one Broadway performance as Winnifred, who cannot sleep on the mattresses with a pea underneath (spoiler!), Burnett actually fell asleep onstage! She came to when she heard the stage manager yelling: “Carol! WAKE UP!”
Have fun, stay safe, and remember to bring your pets in away from the noise.