US Patent 7363668 Multifunctional active carbon cocofiber mattress for lifesaving

The embodiments relate to an active carbon cocofiber mattress with the functions of floating and life saving. The embodiment can be folded to form a floating bed. The mattress core comprises prefabricated solid and rigid cocofiber mattresses with an ultra-thick sandwiched layer sandwiched therebetween; thus, when integrated as a whole, has a specific gravity of less than about 1. On said cocofiber mattress, there is provided with a high elastic cocofiber mattress. Within the ultra-thick sandwiched layer, air holes and channels filled with active carbon are provided. Active carbon layers cover the surface of the cocofiber mattress core.