What is the difference between regular epilepsy and nocturnal epilepsy?

Seizures in sleep. Nocturnal epilepsy is epilepsy (seizures) ocuring during sleep. Sleep increases or brings out many kinds of seizures, so patients with epilepsy may have seizures during sleep. In nocturnal epilepsy, seizures are limited to sleep, such as in benign rolandic epilepsy of childhood, or in certain abnormal movements or behaviors in sleep which can be caused by frontal lobe seizures.
None really. Epilepsy is a condition of recurrent seizures. Seizures may be triggered by different conditions. Sleep is a very activating condition for some patients. However, the risk for seizures would be high even without sleep. It is important to discuss these issues with your doctor. Epilepsy needs good control, regardless of when they tend to occur.