Picking a hammock size is a matter of personal preference and will depend on your height and intended use. Here is some information on what we had in mind when we designed each product to help you decide.
The Single Hammock is intended for use by a single person. It is incredibly light and packs tiny, making it useful as a day trip companion or bedding for a single night. In our experience, this hammock is comfortable for individuals up to 6 feet tall. Unpacked, the hammock is 104 inches by 47 inches.
The Single+ Hammock is built with longer camping trips and taller people in mind. Unpacked, the hammock is 116 inches by 63 inches. It's great for an average size person plus a sleeping pad/bag.
The Long Hammock will provide the most length for the tallest hammockers and the best diagonal lay. Unpacked, the Long hammock measures 128 inches long by 63 inches wide. If you are searching for that diagonal lay, this is the one to try.