Dreams on Demand: The Brain Flips into Dream Narratives Across Awake and Sleep

A study with 92 participants using Edison-inspired wake interruptions found four mental states (C1–C4) that appear across wakefulness, sleep onset, and light sleep, including a bizarre dream-like C3 with a neural signature of reduced frontal–occipital connectivity. This shows dreaming can occur while awake, challenges the strict wake/sleep divide, and has implications for paradoxical insomnia and creative insight during wake–sleep transitions.