A hammock is a lightweight and easy-to-carry bedding for outdoor activities. The materials used to make the hammock are usually tied to a tree. According to the manufacturing materials, they are divided into cloth hammocks and rope net hammocks. Cloth hammocks are usually made of thin canvas or nylon cloth, while rope net hammocks are usually made of cotton ropes or nylon ropes. Rope hammocks are particularly suitable in tropical jungles and hot summers, while cloth hammocks have a wider range of applications and can be used in other seasons except in severe cold areas and winter.