Sleeping mode accessory

A system for inducing a target physiological state in a user comprising

• a portable main unit;
• and
• an accessory unit, wherein the main unit comprises
• a receiver for receiving measurement data from the accessory unit, the measurement data being indicative of the current physiological state of the user,
• a processing unit for processing the received measurement data,
• an audio output unit, and
• a memory,
• the processing unit being arranged to determine the current physiological state of the user by comparing the received measurement data to known data in the memory and to output audio data from the audio output unit depending on the detected current physiological state,
• wherein the accessory unit comprises
• a sensing unit for measuring data indicative of the current physiological state of the user of the main unit and
• a transmitter for transmitting the measured data to the main unit.

An accessory unit for inducing a target physiological state in a user using the accessory unit, the accessory unit comprising

• a sensing unit for measuring data indicative of the current physiological state of the user;
• a transmitter for transmitting the measured data via a wireless link;
• and
• a receiver for wirelessly receiving control signals controlling the time interval of the measurement.

A method for inducing a target physiological state in a user using a portable main unit comprising:

• a) receiving measurement data indicative of the current physiological state of a user of the main unit;
• b) processing the received measurement data;
• c) detecting the current physiological state of the user by comparing the processed received measurement data to predefined data in the memory indicative of physiological states;
• d) outputting audio data through an audio output unit;
• e) adjusting the output of the audio data according to the target physiological state to be induced in the user.

A computer program for inducing a target physiological state in a user using a portable unit comprising instructions sets for:

• a) receiving measurement data indicative of the current physiological state of a user of the main unit;
• b) processing the received measurement data;
• c) detecting the current physiological state of the user by comparing the processed received measurement data to predefined data in the memory indicative of physiological states;
• d) outputting audio data through an audio output unit and,
• e) adjusting the output of the audio data according to the target physiological state to be induced in the user.