Why you heard an explosion in your head that awakened you while asleep?

Answer 1

Exploding head syndrome is not nearly as dramatic or fatalistic as it may sound. It is actually a rare sleep disorder. As the name implies, this disorder interrupts sleep with an imagined explosion within the person's head. There is no actual explosion, but people who suffer from this rare sleep disorder imagine a huge explosion just as they fall asleep or sometimes after they have already been asleep for some time. The imagined explosion wakes up the person affected by this disorder, and in some instances the event can be frightening and relatively traumatic. People who suffer from Exploding Head Syndrome may have additional stress when trying to fall asleep because they fear the potential of recurring explosions and the sheer fear of the event may be enough to make sleeping problematic.