To solve the problem that a conventional bendable bed does not allow a person to take a posture of inclining the lower half of the body in the posture with the heart position being lowered to the lowest and the knees being stretched although the person is allowed to lift the leg raising and the back.

The bed has an inclining part for lifting the tiptoe side upward when the person lies on the back, and the inclining part is 2/3 or more and 4/5 or less of the whole length, or a first position, i.e., one position near the lower part of a connection part of frame bodies divided into three or more and a second position on the base having a height almost equal to the first position are turnably connected through a main rod body, and a doglegged slide rod body turnably connecting the first position and a roller capable of sliding on a rail fixed to the base is placed, or the slide rod body is of a doglegged shape, the connection part with the first position is near this bending point, and the lever section of the slide rod body is inclined downward when the main rod body is in a horizontal position and soon touches the frame body when the roller is moved, and its inclination angle can be altered.