A patient support system is provided with side bolster features for improved patient safety and control. A multi component mattress includes a resilient foam core having associated therewith two side bolsters of a less compressible resilient material. Each side bolster forms two peaks with a saddle therebetween...http://www.google.es/patents/US6256822?utm_source=gb-gplus-sharePatente US6256822 - Patient support system with side bolster features
