Step into a peaceful journey through deep time, to the world that emerged after the dinosaurs vanished. This calming documentary explores the Cenozoic Era—an age of rising mammals, changing climates, and the slow shaping of the modern Earth. With gentle narration and soothing storytelling, this film is designed to relax the mind, ease you into rest, and help you drift into sleep while learning about our planet’s quiet evolution. #CenozoicEra #AfterTheDinosaurs #SleepDocumentary #RelaxingHistory #CalmNarration #DeepTime #NatureDocumentary #SoothingStories #EarthHistory #DocumentaryForSleep