bedding vs duvet

bedding

noun
  • The textiles associated with a bed, e.g., sheets, pillowcases, bedspreads, blankets, etc. 

  • A structure occurring in granite and similar massive rocks that allows them to split in well-defined planes horizontally or parallel to the land surface. 

  • The temporary planting of fast-growing plants into flower beds to create colourful, temporary, seasonal displays, during spring, summer or winter. 

  • The textiles associated with the bed, as well as the mattress, bedframe, or bed base (such as box spring). 

  • Any material used by or provided to animals to lie on. 

duvet

noun
  • A quilt or usually flat cloth bag with a filling (traditionally down) and usually an additional washable cover, used instead of blankets; often called a comforter or quilt, especially in US English. 

How often have the words bedding and duvet occurred in a corpus of books? (source: Google Ngram Viewer )