[1] Bed sheets were traditionally white and made of cotton, linen or silk, however, now various colors and patterns are used.
A particular way of folding and tucking while making the bed, known as "hospital corners," is sometimes used when the bottom sheet is flat rather than fitted.
In China, a four-piece set consists of a duvet cover, two pillowcases and either a fitted or flat sheet.
Cotton provides absorbency and a soft hand, while polyester adds durability and wrinkle resistance.
[2] Other common fibers used in the manufacturing of bed sheets include linen, silk, Modal and bamboo rayon, lyocell, Microtex or Microfiber, and polypropylene.
Polypropylene (olefin) is a hypoallergenic spun-bound material produced at a low cost and typically used in emergency shelters or hospitals as disposable sheeting.
[6] Warm water can be used to eliminate coffee stains, urine or allergens, such as dust mites.