To provide an infant mat capable of giving a "light feeling of pressure" to an infant's body so that the infant does not cry after the infant who has begun to sleep is put on the bed. The infant mat sleep assist functional mat according to the present invention has a mat body that supports an object, which is an infant's body, upward, and protrudes in a hill shape as a whole from the surface of the mat body. A side supporter to be supported, and a compression supporter that is positioned so as to intersect or cross the width direction of the mat body and that is fixed to the mat body and is in close contact with the object. [Selection] Figure 1
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