A Treatise on the Incubus, or Night-Mare, Disturbed Sleep, Terrific Dreams and Nocturnal Visions

A scientific publication written in the early 19th century. The work explores the phenomena of disturbed sleep and related conditions, including the causes and remedies for the night-mare—a term used to describe frightening dreams that often leave individuals feeling exhausted and anxious. It aims to provide insights into the nature of these afflictions, alongside historical and personal observations regarding their treatment and impact on health. At the start of the treatise, Waller emphasizes the significance of undisturbed sleep as an indicator of good health, noting how disturbances can be symptoms of underlying issues. He recounts his own struggles with night-terrors and disturbed sleep, highlighting the misconceptions surrounding these conditions, such as their supposed exclusive relation to sleeping positions or food intake. Waller introduces various experiences, both his own and from others, discussing the psychological and physiological aspects of night-mare episodes, and foreshadows his focus on remedies derived from ancient medical practices combined with personal observations.