The Pajama Game is a classic musical comedy about a labor dispute at the Sleep-Tite Pajama Factory. Set in the 1950s, the show follows the love story between the factory's new superintendent, Sid Sorokin, and the leader of the union grievance committee, Babe
From Wikipedia
The Pajama Game is a musical based on the 1953 novel 7½ Cents by Richard Bissell. The book is by George Abbott and Richard Bissell; the music and lyrics are by Richard Adler and Jerry Ross. Dances were staged by Bob Fosse in his choreography debut. The story deals with labor troubles and romance in a pajama factory.