Sister Sleep Photos et images de collection Getty ImagesAlthough snoozing ️ sis, when asleep she automatically undergoes a condition of deep tranquility. Fantasies and subconscious notions occur as her brain roams through the realm of imagination. During this time, sensations might be altered and memories created through daily experiences. As asleep, the ️ sis finds rest, revitalization, and a sense of serenity.