Excessive sleepiness, particularly excessive daytime sleepiness, is the hallmark sign of hypersomnia. Hypersomnia can also be characterized by prolonged sleep at night. Up to 40 percent of people experience symptoms of hypersomnia at one time or the other, reports WebMd. Some people inflicted with this sleep disorder have trouble functioning at work and school and interacting with family, friends, and in other social situations.\r\n\r\n\r\nHypersomnia Symptoms\r\nIn addition to prolonged sleepiness at night and excessive daytime sleepiness, hypersomnia has other symptoms which may include the following:\r\n\r\n\treduced energy\r\n\tanxiety\r\n\tagitation\r\n\trestlessness\r\n\tappetite loss\r\n\tmemory problems\r\n\tslowed cognitive function\r\n\thallucinations\r\n\r\nCauses of Hypersomnia\r\nWhile some people have a genetic predisposition to hypersomnia, for others the cause is unknown. In other cases, the excessive sleepiness is caused by another sleep disorder, such as sleep apnea or narcolepsy. Alcohol abuse is yet another cause, while certain medications -- and even drug withdrawal can be to blame. Hypersomnia can also stem from some medical conditions, including, but not limited to, tumors, central nervous system injury, trauma to the head, epilepsy, depression, hyperthyroidism, and multiple sclerosis. Obesity sometimes brings on the sleep disorder as well, as does sleep deprivation.\r\n\r\n\r\nDiagnosing Hypersomnia\r\nTo diagnose hypersomnia, your doctor will prescribe multiple tests, including a CT and blood tests. In addition, you will need to undergo a sleep test, called a polysomnogram. Depending on your symptoms, your doctor may request an EEG test, which measures your brain\u2019s electrical activity.\r\nTreating Hypersomnia\r\nIn many cases, physicians treat the symptoms of hypersomnia, and vary depending on the cause. For instance, if alcohol or drug abuse is to blame, then discontinuation can provide relief.\r\n\r\nOn the other hand, if sleep apnea is causing your excessive sleepiness, your doctor may advise you to wear a CPAP (continuous positive airway pressure) machine while you sleep.\r\n\r\nSometimes medications, such as antidepressants or stimulants, may be prescribed. In a study out of Emory University, researchers found that a drug called flumazenil was able to restore alertness in subjects who displayed excessive sleepiness despite having enough sleep.\r\nHypersomnia Prognosis\r\nFor some people, the excessive sleepiness dissipates once the underlying disorder is corrected. While hypersomnia on its own isn\u2019t fatal, it\u2019s effects, such as driving while drowsy, can lead to serious or life-threatening consequences.\r\n\r\nFor additional information on hypersomnia, visit the Hypersomnia Foundation.\r\nLink to Us!\r\nIf you found this article useful and shareable, please copy and paste the following into the html code of your website or blog:\r\n\r\nLearn More about Getting a Better Night's Sleep and Good Sleep Hygiene at <a href"https:\/\/www.plushbeds.com\/blog\/sleep-disorders\/hypersomnia\/">Plushbeds Green Sleep Blog<\/a>.