A bed frame is a structure that supports a mattress and provides a foundation for a bed. It typically consists of a headboard, footboard, and side rails, which can be made from various materials like wood, metal, or upholstered fabric. Bed frames come in different styles and sizes, including twin, full, queen, and king, to accommodate various mattress dimensions. In addition to providing support, bed frames can enhance the overall appearance of a bedroom. Some designs include storage options, such as drawers or shelves, while others may feature adjustable heights. A sturdy bed frame can also help prolong the life of a mattress by ensuring proper ventilation.