Yes, ceramic fibers can be used for bedding insulation materials. They are known for their excellent thermal insulation properties, which can help maintain a comfortable temperature within bedding. These fibers are lightweight, flexible, and resistant to heat, making them an ideal choice for insulation in bedding products. However, it's important to ensure that the fibers are safe for use, as some types of ceramic fibers may pose health risks if inhaled or if they contain harmful substances. Proper handling and encapsulation are necessary to prevent any potential health issues.