Young woman in bed, France circa 1830-1840

Oil on canvas representing a young woman in bed, or sleeping, the right breast uncovered. 
Who can she be? The lover or the wife of the painter? Is she in a dream? The attitude is extremely sensual, and one thinks instantly of the painting by Gervex (later): "Rolla", of 1878. 
We are still here in the 2nd quarter of the 19th century. The feeling takes precedence over the reason. One seeks escape and delight in the dream, the sublime, exoticism, passion and melancholy. We are in full Romanticism. 
Attributed to Claude Marie Dubufe. A favorite theme of this artist, who often represents these young women, half asleep or semi-abandoned.
The Musée Fabre's "Le Sommeil" (59.7 x 72.5) is known in three other versions, including one in a private collection in Versailles.
Gilded frame, old restorations. 
Very nice effect.