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Sleep Stages Change Throughout Life

How REM, deep, and light sleep shift from childhood to old age

Sleep architecture changes dramatically as we age. Babies spend nearly 50% of sleep in REM, while elderly adults may only get 15%. Deep sleep peaks in adolescence and steadily declines. This visualization shows the composition of sleep stages across the human lifespan.

19 views Published January 12, 2026 Updated about 1 month ago

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// DATA SOURCES

Sleep Medicine Reviews - Sleep Architecture Changes with Aging

Comprehensive meta-analysis of sleep stage changes across lifespan

Nature - The aging human sleep EEG

Large study on sleep architecture and aging

// RELATED VISUALIZATIONS

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Alcohol's Effect on Sleep Quality

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Blue Light's Effect on Melatonin

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Caffeine Half-Life Timeline

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Healthy Sleep Stage Distribution

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Disclaimer: This visualization is for educational and informational purposes only. Data presented here is based on research studies and should not be used as a substitute for professional medical advice. Always consult with a qualified healthcare provider before making health decisions.

Sleep Stages Change Throughout Life

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// DATA SOURCES

// RELATED VISUALIZATIONS

Alcohol's Effect on Sleep Quality

Blue Light's Effect on Melatonin

Caffeine Half-Life Timeline

Healthy Sleep Stage Distribution