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  1. 100+ Sleep Statistics - Facts and Data About Sleep 2024 - Sleep Foundation

  2. Recommended Hours of Sleep by Age Chart | Sleep.com

  3. How Much Sleep Do You Really Need? - National Sleep Foundation

  4. Sleep Graphs - Oura Help

  5. FastStats: Sleep in Adults | Sleep | CDC - Centers for Disease …

  6. FastStats: Sleep in High School Students | Sleep | CDC

  7. About Sleep | Sleep | CDC - Centers for Disease Control and …

  8. National Sleep Foundation’s sleep time duration …

  9. Sleep: How Much You Need and Its 4 Stages - Cleveland Clinic …

  10. Creating a sleep chart in excel with dates on y-axis and time on …