Very feminine are the new robes de nuit. Helen Kane, the Paramount player, has a charming robe of flesh satin and heavy ecru lace. The garment reaches only to the knees, as also does the sip underneath. The lace is appliqued on the hemline and edges of the wide sleeves, and Miss Kane has a arge shoulder bow of satin as a finishing touch. Her satin mules, of a matching shade, are trimmed with rosebuds and feathers.