Understanding why Lady Macbeth has begun to sleepwalk will help you to understand her character. She needs to be cleansed. Lady Macbeth never saw the evil of the murder lasting in this way.

Hundreds of innocent people (mostly women) were executed as suspected witches ... The Witches' predictions encourage Macbeth to think wicked thoughts and carry out evil deeds.

There’s a provocative overlap between Woman’s bloody effort to wield power in the play, as Lady Macbeth, and her groping efforts to wield power over Shakespeare’s play, in Macbeth in Stride.