We will start with the legs. There will be a pair of electrodes on each leg (positions shown in the images) that will reveal any restless leg movements overnight.

​If you have hair on your legs, shave the area discussed here before proceeding.

​Beginning with the left leg, use an alcohol swab to clean a 5cm wide, 10cm long area in the ‘valley’ between the outer shin and calf, about one third to one half of the way down the leg (see image for guide).

​Abrade the area with abrasive gel for 30 seconds.

Repeat with the other leg.