Sleep in a 1‐year diary from the mid‐18th century

• Published in: Journal of sleep research Vol. 33; no. 3; p. e14067
• Main Authors: Schulz, Hartmut, Dirlich, Gerhard
• Format: Journal Article
• Language: English
• Published: England 01.05.2024
• Subjects: Diaries as Topic; Female; Germany; History, 18th Century; Humans; Male; Seasons; Sleep - physiology; Time Factors; Germany; early modern time; enlightenment; seasonality; history of sleep; sleep diary

A 1‐year systematic diary was kept by an anonymous diarist in Hamburg in the year 1755–1756. Sleep, activities, food intake, urine volume, and meteorological data were documented daily. The systematic recording of sleep and naps, with an accuracy of a quarter of an hour allowed analysis of the place...