This article reviews the features of an uncommon malady termed "the exploding 
head syndrome." Sufferers describe terrorizing attacks of a painless explosion 
within their head. Attacks tend to occur at the onset of sleep. The etiology of 
attacks is unknown, although they are considered to be benign. Treatment with 
clomipramine has been suggested, although most sufferers require only 
reassurance that the spells are benign in nature.