Editing Bed sheet (section)

==Styles==
[[File:Colorful Bed sheets.jpg|alt=|thumb|Assortment of different colored bed sheets]]
Bed sheets come in two main varieties: flat and fitted. A flat sheet is simply a rectangular sheet of cloth, while a [[wikt:fitted sheet|fitted sheet]] has four corners, and sometimes two or four sides, fitted with [[Elastomer|elastic]], to be used only as a bottom sheet. The fitted sheet may also be secured using a drawstring instead of elastic. The purpose of a fitted bottom sheet is to keep it from slipping off the mattress while the bed is in use. 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.

Usually a flat bed sheet is [[overlock]]ed around the edges to form four [[seam (sewing)|seams]]. One of the seams is wider than the other three and helps with orienting the sheet correctly on the [[mattress]]. The wider seam goes at the head end of the mattress. Sometimes the sides do not have seams, but are finished with the [[selvedge]] only. When one [[Bed-making|makes a bed]], the patterned or [[monogram]]med side of the top sheet may be placed facing up, or facing down, in which case the top edge may be folded towards the foot of the bed to expose the design.

In the US and Canada, sheets are often sold in a four-piece set consisting of a fitted sheet, a flat sheet and two pillowcases. In China, a four-piece set consists of a [[duvet cover]], two pillowcases and either a fitted or flat sheet. Fitted sheets are gaining popularity due to their ease of use. Use of good quality elastic make fitted sheets durable.