Before asking why anyone would use a hammock as a bath tub? Consider that the Hydro Hammock comes equipped with a Portable HotTub liner that can also be used in sand or snow, in a small beach pit. The Hydro uses a heating system that heats water from a garden hose, beach, lake, river or other water source to fill into the hammock. So you’re essentially able to create a hot tub on the fly regardless of your location, even on a snowy mountain. That’s not all, there are two integrated USB ports to charge your mobile devices while you relax. Best of all, you can pick one up for just $260 from the Kickstarter page now.