Abstract: A pillow provided with a power unit for rotating its top surface about a horizontal center line of rotation into a new angular position whenever a snoring noise is detected. The angular position of the head of the sleeping person is thereby changed gradually enough not to wake him up but since his larynx is changed into a new state every time the top surface of the pillow is rotated into a new angular position the snoring noise is eventually controlled. Reliable detection of snoring noise is made possible by taking advantage of the periodic nature of the snoring noise.