Infographic Showing Sleep Cycles 831253666

Tags: colorful human healthy structure sleep data drawing education biology science research graph chart poster educational diagram visualization tracking monitoring duration labeled neuroscience brainwaves infographic white background hand drawn deep sleep brain activity light sleep circadian rhythm rem sleep sleep study restful sleep sleep cycle rem phase sleep stages hypnogram sleep phases non rem sleep vivid dreams restorative sleep dreaming stages human sleep pattern NREM stages sleep depth nightly sleep cycle bedtime stages