Patent ID: 8850634

Claim:
A system for use with a bed having a frame and a supporting surface supported by the frame, the system comprising: a sheet having a bottom surface adapted to be placed above the supporting surface of the bed and a top surface opposite the bottom surface, wherein the sheet comprises a first material having a first coefficient of friction, the first material formed as a first piece of sheet material having a top side and a bottom side, and a second material connected to the top side of the first piece of sheet material and covering a portion of the top side, such that the first piece of sheet material defines the bottom surface of the sheet and forms a portion of the top surface, wherein the second material has a second coefficient of friction, wherein the second coefficient of friction is higher than the first coefficient of friction such that the top surface provides greater slipping resistance than the bottom surface; a tether strap connected to the sheet and extending from the sheet, the tether strap being configured for connection to a fastener on the bed, wherein the tether strap comprises an elastic portion forming at least a portion of a length of the tether strap; and a wedge comprising a base wall, a ramp surface, and a back wall, the ramp surface being positioned at an angle to the base wall, wherein the wedge is configured to be positioned under the sheet such that the base wall confronts the supporting surface of the bed and the ramp surface confronts the bottom surface of the sheet.