To prevent a load surface from sinking by attaching and incorporating a frame bed and filler in an elastic cover to transmit one's weight directly to a floor surface.

When one sits upright on a usual cushion, one's weight is applied to one's folded feet through the hips irrespective of the thickness of cotton and sponge in the inside, so that the feet cannot help becoming numb. Then, a frame bed is incorporated in a portion on which the hips ride to prevent a load surface from sinking. Thus, since one's weight is transmitted directly to a floor surface through the frame bed 3, the feet do not become numb. A cover 1 enveloping the frame bed 3 and filler 2 to constitute a cushion attaches a gather to the periphery of the frame bed 3 or uses an elastic material to facilitate the insertion of the feet beneath the frame bed 3. In the use of this cushion, even when one sits cross-legged or extending the feet forward in addition to sitting upright, one assumes the posture sitting on a low chair to sit very easily. Further, this frame bed 3 may be shaped to have gouged-out portions in which the feet are inserted.