I use the BodyCushion system. Not all pregnancy cushions are created equal. This set has three separate cushions that can be placed to fit your unique shape. Unlike one piece pregnancy cushions that take a "one size fits all" approach, this set is adjustable to allow an extensive range of body types maximum support and comfort. There is no direct pressure on the abdomen, the spine is unloaded and decompressed and the associated muscles are relaxed. This set is also made out of a high quality foam that offers my clients a great deal of support. Cheaper versions of pregnancy cushions offer less support and also off gas from the vinyl and foam.