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How Much Sleep Do You Really Need?
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Sleep needs vary significantly by age. The National Sleep Foundation recommends 7-9 hours for adults, 8-10 for teens, and 9-12 for school-age children. Quality matters as much as quantity.
Each sleep cycle lasts approximately 90 minutes and includes light sleep, deep sleep, and REM stages. Adults typically need 5-6 complete cycles per night for optimal rest and recovery.
Common use cases:
- Establishing healthy sleep schedules
- Age-appropriate sleep recommendations
- Improving sleep quality and duration
Frequently Asked Questions
Maria Gonzalez
Registered Dietitian, RD, MPH
Maria is a Registered Dietitian with a Master's in Public Health. She focuses on evidence-based nutrition assessment tools including BMI, calorie calculations, and body composition analysis.
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