The term bed sheet was first used in the 15th century.[1] Bed sheets were traditionally white and made of cotton, linen or silk, however, now various colors and patterns are used.
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LINEN


A duvet is similar to a comforter except it requires the use of a duvet cover, where a comforter does not. Typically, a duvet is solid white and stuffed with down or a down alternative.
Twill
Plus, some fabrics don’t even use thread count as a measure, such as silk, jersey, or flannel.
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Tencel:Tencel is a similar material to bamboo viscose. However, it is made from eucalyptus instead of bamboo and uses a slightly different manufacturing process. Tencel is actually a brand name — the generic term for this material is eucalyptus lyocell.

