Hypersomnolence is a condition characterized by excessive sleepiness, which interferes with your daily activities. Patients usually fall asleep during the day at inappropriate times such as during work, while conversing and eating. This condition may also be characterized by symptoms such as difficulty in waking, irritation, hallucinations, loss of appetite, and slow speech and thinking. This condition is mainly caused due to an underlying sleep disorder or neurological condition, sleep deprivation, drug or alcohol abuse, being overweight, head injuries or heredity.
Hypersomnolence can be diagnosed by evaluating your sleeping habits and sleep cycle, i.e. how much sleep you get and how often you wake up during the night. Polysomnography (measures body functions during sleep) and an electroencephalogram (measures the electrical activity of the brain) may also be ordered to confirm the diagnosis. Hypersomnolence can be treated with the help of medications such as stimulants or antidepressants.