A vibrotactile stimulation device intended to be applied against a body environment (MC) to be stimulated and comprising a vibrating effector suitable for applying, to said environment, pulses of mechanical vibrational energy, and a controller controlling the effector according to stimulation rules. The device is remarkable in that it further comprises vibration detector suitable for being exposed to the body environment in order to receive a part of the vibrational energy transmitted to said means by said environment during the application of the pulses of vibrational energy, and determine a transmission characteristic of the vibrational energy between the effector and the environment to be stimulated, said vibration detector being linked to the controller. An application to improving the efficacy of body stimulation in combating sleep apnoea is also disclosed.