Executed in 1847 and exhibited at the Salon of 1848, Young Girl Sleeping is one of Courbet’s earliest paintings to explore the theme of a woman asleep. He would return to this subject time and again choosing to portray a variety of female types, where their only shared trait was that they were shown sleeping. This theme would culminate in The Sleepers (1866), a large-scale painting of two nude women entwined in an embrace on a large bed, among Courbet’s most erotic and sensual paintings. Our painting, on the other hand, strikes a much more innocent note. The young model appears in a dream-like state, her head gently resting on her arm; the pose may derive from an earlier pencil drawing showing Courbet’s younger sister, Juliette asleep while reading a book (circa 1840). In the oil, the girl’s innocence is only matched by her ethereal beauty, yet Courbet has still managed to capture her nascent sensuality, the folds of the white drapery concealing, yet subtly emphasizing, the curves of her body. The picture evokes Picasso’s lyrical portraits of Marie-Thérèse Walter, where often the subject, mood and composition are similar to those in Young Girl Sleeping. Courbet, like Picasso, would herald a new age by defying so much of what had been acceptable in order to create a new interpretation of what could and should be defined as art. They each revolutionized and changed the course of art history.