Insomnia by Stephen King

The novel follows Ralph Roberts, an elderly man in Derry, Maine, who begins to suffer from severe insomnia following the death of his wife. As his sleeplessness worsens, Ralph starts to perceive strange auras around people and witnesses bizarre, supernatural events. He discovers that he has been drawn into a cosmic battle between forces of good and evil, with the fate of a young boy and the world hanging in the balance. As Ralph navigates this surreal and dangerous landscape, he must confront his own fears and limitations to prevent a catastrophic event, exploring themes of mortality, destiny, and the interconnectedness of life.