Is There a Difference in Sleep?
name: label: Collection Creator
content: Simmons Company
setName: label: See more items in
content: The Simmons Company Records
label: See more items in
content: The Simmons Company Records / Series 2: Marketing / 2.8: Dealer Materials
unitdate: label: Date
content: 1957
container: label: Container
content: Box 147, Folder 14
dataSource: label: Archival Repository
content: Archives Center, National Museum of American History
objectType: label: Type
content: Archival materials