Abstract: The present invention provides a lightweight waterbed structure composed of a foam base with a raised border around the perimeter containing a plurality of generally flat multiple bladders arranged horizontally in a configuration to cover the foam base and a convoluted foam pad which covers the plurality of multiple bladders. Applicant's invention provides an extremely lightweight waterbed containing a small amount of water or liquid, which can be used safely in any type of house or apartment, yet unexpectedly provides the support, feel and comfort of a heavier, conventional waterbed. By utilizing a plurality of rectangular, generally flat profile, thin water bladders and covering them with a convoluted foam pad positioned with the fingers of the convoluted foam away from the water bladders, the motion of the water in the bladders is accentuated, thus providing the user the feeling and sensation of a flotation mattress containing greater volumes of water.