What happens to our brain at night? Are we really fully asleep and if so how is it that some individuals end up doing what they do? Or can it be the case that perhaps the brain never fully goes to sleep and that in some individuals there is a disconnect between the sleeping part of their brain and the active part of their brain, so that the two become confused? The world-renowned neurologist weaves wonderful stories that highlight how sleep disorders affect the lives and health of patients and their families.