Hypersomnia is a state of excessive sleepiness which can result in decreased functioning and affect performance adversely. Hypersomnolence is defined as an inability to stay awake and alert during major waking episodes, resulting in periods of irrepressible need for sleep or unintended lapses into drowsiness or sleep. Hypersomnia is a sleeping disorder categorised by excessive daytime sleepiness (EDS) despite getting adequate or prolonged sound sleep at night. Some people with this disorder may regularly sleep for 9 to 11 hours a day or more and still feel exhausted. Hypersomnia is a sleep disorder that leads to excessive daytime sleepiness and can be managed with lifestyle adjustments and medical treatment. Hypersomnia makes you feel extremely sleepy during the day — even if you get a healthy amount of rest at night.
