The majority of the patients who consult a psychiatrist experience sleep disorders like sleep apnea, insomnia and narcolepsy. Insomnia is a prevalent sign of sleep apnea. All of these sleep problems can result in excessive daytime drowsiness, which can affect your mood, anxiety levels, emotions, sex desire, and trigger other issues. Patients experiencing sleep disorders may also seek treatment from a general physician, counsellors and/or sleep specialists.