Guerlain's Orchidee Imperiale The Sleeping Serum works through the night to refresh and renew the skin. Its unique Night Cell Respirationu201au00d1u00a2 Technology reduces the appearance of sleep wrinkles while deeply hydrating.The lightweight micro-emulsion texture ensures a soothing and firming effect, delivering a youthful glow by morning. Wake up to skin that feels revitalized and looks visibly smoother and more radiant.