With two young children and a high-pressure job as a management consultant, Matthias Winker often felt completely exhausted during the day.
But it transpired that his constant fatigue was actually due to a severe snoring condition, rather than the everyday stresses and strains of life.
In 2019, Matthias, 40, was diagnosed with sleep apnoea, a common ailment where heavy night-time snoring repeatedly shuts off the airways, causing a momentary lapse in breathing.
