"...these experiences bleed into and affect our waking lives—including how productive we are at work."

Wakefulness drugs like Modafinil point to a new frontier of technosleep driven by personal goals rather than medical need.

REM sleep behavior disorder is characterized by acting out dreams, which may include shouting, kicking and punching during sleep.

By learning what parts of the brain are crucial for imagination to work, neuroscientists can look back over hundreds of millions of years of evolution to figure out when it first emerged.

Researchers have taken a step toward understanding how human thoughts and dreams emerge from electrical pulses in the brain's trillions of synapses.

Animals really do dream, according to a new book on the science of consciousness. Hear a podcast interview with the author.

Proficiency, emotions, immediacy are all potentially in play in conversations that run deep into the unconcious night, says dream expert Deirdre Leigh Barrett.