Collapsible furniture is a type of furniture that can be easily folded or collapsed for storage and transportation. It is typically made from lightweight materials such as metal or plastic, and is designed to be easily assembled and disassembled. COT is an acronym for COT bed, which is a type of collapsible furniture that is commonly used in camping and other outdoor activities. COT beds are usually made from canvas or nylon and feature a folding frame and mattress.