Some people are at higher risk of developing epilepsy, including:
strokes, blood vessel malformations, and tumors. Some potential causes of epilepsy include: Doctors diagnose a person with epilepsy if they have two or more seizures that are not clearly caused by something else, such as a fever or alcohol withdrawal. Knowing a person has epilepsy does not explain why they have seizures. Epilepsy is an umbrella term that refers to many different types of seizure disorders. Lack of sleep is a common seizure trigger among people with epilepsy, so nocturnal seizures that disrupt sleep may increase the risk of further seizures.Įpilepsy can cause nighttime seizures. Immediately after the seizure, it may be difficult to wake the person. This can cause them to bite their tongue or lose control of their bladder or bowels.ĭuring the clonic phase, their muscles may twitch. They typically last less than 5 minutes.ĭuring the tonic phase, a person’s muscles stiffen. Doctors used to call tonic-clonic seizures grand mal seizures. Most nocturnal seizures are tonic-clonic. It’s not uncommon to have these episodes without memory of them the next day. Some wake from sleep with an aura before having a complex partial seizure. 
There are many different types of seizures, and any can happen during sleep. During a seizure, a sudden surge of unusual electrical activity causes a person to lose control of some of these functions. Various chemicals trigger regular electrical activity that plays a role in everyday thinking, movement, and other brain functions. Nocturnal seizures are rare and usually mean a person has epilepsy.
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