Disclosed is an inflatable patient repositioning sheet that includes an inflatable body and a first air supply port and a second air supply port of the inflatable body. The sheet includes a first air delivery sock and a second air delivery sock in the inflatable body. Each air delivery sock has a first end portion and a second end portion, wherein the first end portion of each air delivery sock is in communication with one of the air supply ports and the second end portion is opposite the first end portion. The sheet includes at least one anchor member resisting movement of the second end portion of each air delivery sock toward the first end portion of the air delivery sock in response to air being supplied into the other of the air delivery socks.