Abstract: A wave dampened waterbed mattress includes a bladder for containing water, a first horizontally extending baffle within the bladder having a horizontal extent corresponding generally to the horizontal extent of the top wall, and including flotation material for causing it to float against the top wall of the bladder is filled with water, and a second horizontally extending baffle within the bladder having a substantial horizontal extent and a density greater than water for causing it to lie against the bottom wall of the bladder. The first and second baffles are free floating, unanchored, and spaced relative to each other to leave a layer of unbaffled water between them. The upper baffle preferably includes a layer of beaded polyester fiber which is joined to a top layer of open cell convoluted foam. The bottom layer preferably includes several layers of unbeaded polyester fiber. The fiber is bonded and non-woven.