sleep

Cards (3)

Innocence and Peace 
Sleep symbolizes innocence, purity, and peace of mind.
In killing Duncan, Macbeth actually does murder sleep.
Lady Macbeth begins to sleepwalk, and Macbeth is haunted by his nightmares
Sleep, or the lack of it, is used to demonstrate guilt and remorse
“Sleep shall neither night nor day Hang upon his pent-house lid” (Witch, Act I, Scene III) 
One of the Witches plans a revenge curse for a sailor whose wife has offended her by refusing to share her chestnuts with her.
The sailor will be unable to sleep during the night or the day.
Later in the play Macbeth and his wife suffer troubled sleep and nightmares and this passage foreshadows that