A novel bed accessory, such as a pillow, bed or crib sheet, is provided with a plurality of layers of foam rubber, elastomeric material or ther resilient material capable of creating air ventilation to the surface of the accessory, as well as transmitting and storing body secretions for subsequent removal,...http://www.google.com.au/patents/US5388296?utm_source=gb-gplus-sharePatent US5388296 - Fluid permeable bed accessory
