Hunter-gatherers get less sleep than people in industrial societies / Australian dragon study reveals surprising link between motor systems control and sleep rhythms / Fresh insights into how we doze off may help tackle sleep conditions / Benefits of the Scandinavian sleep method, explained by a sleep expert / Simulated microgravity affects sleep and physiological rhythms, study finds / AI can better retain what it learns by mimicking human sleep / What is the Scandinavian sleep method? / Researchers give more insight into significance of sleep, intricacy of brain / Lessons from sleep in the deep | Science