Hammock can be another alternative choice as sleeping device for camping. Hammock is a kind of sleeping device that is hung between two trees or hung in a stand. Moreover, the camping hammock is commonly different with regular one that is used in backyard or beach. This kind of hammock is usually available with some features like closed tent. It is designed like hanging tent, with zipper and sleeping pad. Tree tent hammock is available for single or double use. The zippered pocket system of tent hammock will provide you protection from the bugs or mosquitoes and give you more warmth in winter.