LS Series 6106 waterbed mattress when properly filled to the top of the side rails is 100% Waveless. Motion is almost non-existent. This has a medium firmness out of the three 100% waveless mattresses in this line up. If you're looking for a waterbed mattress that doesn't move and gives you more support under your lumbar region (shoulders and hips) then this waterbed mattress would be a perfect fit for you. This waterbed mattress is also available in a Dual Version. - A dual waterbed mattress consists of two separate waterbed chambers. Each person fills their mattress to the level that suites their body shape and weight. Since the waterbed mattresses are separate, when one gets out the others water level does not change and motion is non existent. We recommend getting individual heaters also as the waterbed mattress comes with a thermal divider to keep the temperatures of the waterbed mattresses different from each other. The LS Series 6106 also has a feathered TOP Sleep Surface has a special low tension molded top that reduces surface pressure between your skin and the mattress surface. This creates an abundance of mattress surface area, allowing your body weight to disperse across the mattress better, without raising the water level. | 
