Features Adjustable bolster attaches with hook and loop for individual positioning and is easily removed for patient transfer Machine washable brushed polyester The Soft Rails easily attach to the bed with quick-release buckles Attachment straps are 35 inches long Foundation measures 33 L X 33 W inch and will fit on top of a standard twin and hospital style bed Maximum sleep surface of 17 inches between 2 bolsters Meets CA #117, Section E Flame Retardancy Standards