Now we can plug in the ends of the ECG electrodes and the leg-movement sensors. 

Take the ends of the leg leads and plug them into the corresponding ports at the base of the abdominal belt cinch.

Then take the plug for the ECG electrodes and insert it into the port on the top of the abdominal cinch.

Finally, take the EEG head box and 'clip' it to the chest strap to the participant's left of the SOMNOtouch. Then take the connector and plug it into the remaining circular socket of the device.