Hammocks provide protection from crawling insects, which can be quite a problem in the tropical and sub-tropical areas of Central and South America. They also safeguard also fungal infections that can occur in areas of high humidity.
Even though hammocks are often pictured hanging between two trees, this sleeping sling is often used indoors in many parts of Latin America as a regular bed. The usual method is to attach hooks on each wall and string the hammock between the two walls.
Hammocks are commonly used on naval vessels as a place for the crew to sleep. The advantage of a hammock is that it can easily be folded and hung from a hook when not in use.
Hammocks are made from many different materials including fiber, rope, leather, canvas and plastic. Cotton hammocks are thought to be the most comfortable because they stretch slightly with the weight of a sleeper.
Hammocks are made to accommodate either one or two people. In a double hammock not only is the size of the hammock larger, but if made from fiber, the weave is tighter too.