This folder contains correspondence and other documents relating to Edison's well-known idiosyncrasies in nutrition and sleep habits. Among the items for 1916 is a letter from 84-year-old textile dealer S. L. Warren mentioning the ideas and practices of Luigi Cornaro, a sixteenth-century Venetian architect, humanist, and author of The Art of Living Long, who also influenced Edison's dietary habits. Also included is a letter from Harvard student Thomas T. Hoopes, subsequently professor of art at the University of Chicago and curator of the City Art Museum of St. Louis, concerning personal discipline in limiting sleep.

Approximately 30 percent of the documents have been selected. The unselected items consist primarily of unsolicited general or speculative inquiries, marked either for no answer or for a form-letter reply.