Folding cots can be folded into two to four parts, making them small enough to carry by hand or fit inside bags. The legs either fold together or into the cot, usually with the fabric rolled over the tubing. Most models come with carrying bags or straps to hold the folded cot together.
Roll-up cots are filled sheets of fabric that can be rolled into a tube shape for fitting or strapping onto bags. Many roll-up cots have pull-out string handles, which allow them to be carried like separate bags. Some also come with matching tube-shaped carrying bags. They usually have waterproof bottoms to protect against wet grounds when used for camping.
Raised cots are inflatable and can be as large as ordinary beds. They often consist of several layers of inflated mattress, allowing users to adjust the height of the cot by simply adding or removing folds. They are usually made of tough waterproof materials, such as PVC. They are available in standard bed sizes, such as single, twin, double, and queen-size.