What would be wrong with someone who can easily sleep up to 20 hours?

This article relates many possible problems.

http://www.webmd.com/sleep-disorders/guide/physical-side-effects-oversleeping

Thank you :)

IDIOPATHIC HYPERSOMNIA

If someone is able to sleep up to 20 hours consistently, it could be indicative of a condition known as hypersomnia. Hypersomnia is a sleep disorder characterized by excessive daytime sleepiness, extended sleep periods, and difficulty awakening despite getting adequate sleep. It is important to note that hypersomnia can have various underlying causes.

To determine what might be wrong with someone who experiences excessive sleep, it is recommended to consult with a medical professional, such as a general practitioner or a sleep specialist. They can conduct a thorough evaluation, which might involve a detailed medical history, physical examination, and potentially further diagnostic tests. These tests can help identify any underlying medical conditions, such as sleep apnea, narcolepsy, or certain neurological disorders, which could contribute to the excessive sleep.

Additionally, the physician might inquire about lifestyle factors, medication usage, and psychological factors that could be influencing the person's sleep patterns. Psychological factors, such as depression or chronic fatigue syndrome, can also lead to prolonged periods of sleep.

Remember, only a qualified medical professional can provide an accurate diagnosis and appropriate treatment options based on the individual's specific circumstances.