O sleep, O gentle sleep, Nature’s soft nurse, how have I frighted thee, That thou no more wilt weigh my eyelids down And steep my senses in forgetfulness? This oft-quoted passage from William Shakespeare’s famous history play Henry IV sees an exhausted and guilt-ridden King Henry IV envy how easily his subjects sleep while he, burdened by his crown, suffers from severe insomnia. The Bard wrote the scene as a warning about the heavy weight of ill…