sheets
n. countablen. large pieces of thin cloth that you put on a bed to sleep on or under. They are usually made of cotton or linen and come in pairs for the top and bottom of the mattress.
n. large rectangular pieces of fabric used as bedding, typically placed directly above the mattress and below the blankets. Often used in the plural to refer to the complete set of bed linens.
I need to change the sheets on my bed today.
The hotel staff provides fresh cotton sheets for every new guest who checks into the room.
High-quality sheets with a high thread count offer a smoother texture and better durability than cheaper synthetic alternatives.
Almost always used in the plural when referring to bedding; the singular form usually refers to a piece of paper or a thin layer of material.