What minerals are in a sleeping blanket?

Sleeping blankets typically do not contain minerals in their fabric composition; they are usually made from materials like cotton, polyester, wool, or down. However, some specialized blankets may incorporate minerals such as tourmaline or clay, which are claimed to provide benefits like temperature regulation or improved sleep quality. These minerals are often embedded in the fibers or used in the filling of the blanket. Always check the product specifications for any added materials.