Patent ID: 6898809

Claim:
A transfer mattress comprising: a top panel having a width, a length, and longitudinally oriented peripheral edges; a bottom panel having said width, said length, and longitudinally oriented peripheral edges and a plurality of perforations wherein said longitudinally oriented peripheral edges of said top and bottom panels are sealingly fastened to one another wherein said top and bottom panels are formed from a sheet of a nylon twill fabric that is coated on at least one surface with a durable water repellant coating and on another surface with a polyurethane; and a plurality of baffles each having a width and a length and being attached to an inner surface of said top panel and an inner surface of said bottom panel so as to be transversely oriented between said top panel and said bottom panel, thereby defining a radially outwardly curved longitudinally extensive pontoon disposed between an edge of said baffles and peripheral edges of said top and bottom panels said radially outwardly curved longitudinally extensive perimeter pontoon having a width y that is determined by the following relationship: d ⁢ ⁢ π - x 2 ≤ y wherein d comprises a height of said longitudinally extensive pontoon, and x comprises said width of said baffles.