The dramas of human sleep are well portrayed in Shakespeare’s plays. Lady Macbeth sleepwalks and, in doing so, illumines her larger vulnerable being when the impressive self-controls of her daemon are down: All the perfumes of Arabia will not sweeten this little hand. On the eve of Bosworth, Richard Crookback’s victims usurp his rest, illumining the Drang his malignity has exerted on that superb self-possession, an anxiety invisible until dream can provide x-ray of it. With exquisite tease and affection, Mercutio constructs for Romeo the fabulous dream of Queen Mab, conjuring the outlandishness of dream in the same impulse he…