sheetiä
Sheetin is a Finnish word that can refer to a bedsheet or a large, thin sheet of material. In the context of bedding, it specifically denotes the rectangular piece of fabric used to cover a mattress, typically placed between the sleeper and the duvet or blanket. Sheets are commonly made from cotton, linen, or synthetic blends, and are designed to be washable for hygiene and comfort. The word "sheetin" can also be used more broadly to describe any large, flat, and often flexible sheet of material, such as a sheet of metal, plastic, or paper, depending on the context. For example, one might refer to a sheet of plywood as "sheetin puuta" in Finnish. The term's versatility allows it to describe both household linens and industrial materials.