The utility model relates to an instrument for regulating sleep of a human body, which comprises probes, a pulse generating circuit, a stimulating circuit and a drive circuit. The utility model is characterized in that the output end of the pulse circuit used for generating simulating low-frequency biologic signals is respectively connected with a stimulating probe and a curing probe through the amplification of the simulating circuit and a curing circuit. Because a cure controlling circuit is arranged on the output end of the pulse circuit, collected human body signals are gradually transited to a brain electric rhythm of simulation of during slow wave sleep from a brain electric rhythm of simulation during sobriety and relaxation according to a corresponding mode through the control circuit, and thus, the stimulation degree of a neuron is gradually lowered, repression takes a main position, and sleeping procedure is accelerated. The utility model also has the advantages of simple structure and convenient use.