Many people struggle with inadequate sleep at some point in their lives.
Yet, because the problem does not always affect their daily functioning, many never consult a doctor, therapist, or seek treatment.
Insomnia is a sleep disorder characterised by the inability to fall asleep, stay asleep, or waking up early in the morning for a prolonged period.
It is a very common disorder, affecting between 6 and 40 per cent of the population.
