"Exploding Head Syndrome" Can Strike as You Fall Asleep. An Expert Explains.

Exploding head syndrome causes sudden loud noise sensations as people fall asleep, often described as bangs or explosions.

Episodes are brief, usually painless, and typically disappear when the person fully wakes up.

Researchers do not know the exact cause but link it to sleep transition processes and possible brainstem or auditory inhibition changes.

The condition affects at least 10% of people and is more likely in those with other sleep disturbances or high stress.

Treatment usually involves reassurance and improving sleep habits; medications have limited supporting evidence.