Bedding

Bedding, also known as bedclothes or bed linen, is the materials laid above the mattress of a bed for hygiene, warmth, protection of the mattress, and decorative effect. Bedding is the removable and washable portion of a human sleeping environment. Multiple sets of bedding for each bed will often be washed in rotation and/or changed seasonally to improve sleep comfort at varying room temperatures. In American English, the word bedding generally does not include the mattress, bed frame, or bed base (such as box-spring), while in British English it does. In Australian and New Zealand English, bedding is often called manchester.

A set of bedding usually consists of a flat or fitted bed sheet that covers the mattress; a flat top sheet; either a blanket, quilt, or duvet, sometimes with a duvet cover which can replace or be used in addition to the top sheet; and a number of pillows with pillowcases, also referred to as pillow shams. (See #Terminology for more info on all these terms.) Additional blankets, etc. may be added to ensure the necessary insulation in cold sleeping areas. A common practice for children and some adults is to decorate a bed with plush stuffed animals, dolls, and other soft toys. These are not included under the designation of bedding, although they may provide additional warmth to the sleeper.

Lightweight white, solid-color or printed plain weave, satin weave, or flannel cotton or cotton/polyester blends are the most common types of sheeting, although linen and silk may also be used, including in combination. Goose or duck down and other feathers are frequently used as a warm and lightweight filling in duvets, comforters and quilts. But such fill can protrude in part even from tightly-woven fabric, and be an irritant for many people, particularly those with allergies. Natural and synthetic down alternatives are marketed. Cotton, wool or polyester batting is commonly used as fill in quilts and down alternative comforters. These are less expensive and more easily laundered than natural down or feathers. Synthetic fibers are best in the form of thermofused (where fibers cross) batting. Thick-woven or knitted wool, cotton, acrylic or other microfiber synthetics, or blends of these, are typically used for blankets.

...
Wikipedia