The present application provides a crib mattress, comprising: a mattress body, a mounting housing, a fan, a
humidity meter, and a
control unit, wherein the mounting housing is detachably connected to the mattress body; the fan is arranged in the mounting housing, and an air outlet of the fan is connected to the mattress body; the
humidity meter is arranged on the mattress body; the
control unit is arranged in the mounting housing, and the
control unit is electrically connected to the
humidity meter. The described arrangement of the crib mattress allows for the supply of warm air into the crib mattress, ensuring the comfort of the baby when sleeping; besides, the crib mattress can detect humidity changes around the sleeping position of the baby in real time, and if the humidity on the mattress rises, the humidity meter transmits a
signal to the control unit, and on the basis of the humidity changes, the control unit determines whether bedwetting occurs, and accordingly sends out an
alarm signal to notify a guardian. The crib mattress can achieve autonomous detection, determination and alarm without manual operation, is simple, effective and compact in structure, and is very convenient to produce and
mount.