Recommended sleep duration isn't a single fixed number — it shifts across a lifetime. The ranges below reflect widely referenced general public health guidance.
| Age group | Recommended sleep per night |
|---|---|
| School-age children (6–12) | 9–12 hours |
| Teenagers (13–18) | 8–10 hours |
| Adults (18–64) | 7–9 hours |
| Older adults (65+) | 7–8 hours |
Ranges, not strict targets
These are general population ranges, not individual prescriptions. Some people function well slightly outside these ranges; consistent daytime sleepiness or difficulty functioning is a more meaningful signal than hitting an exact number.
Signs you may not be getting enough
- Needing an alarm to wake up most days, even after a full night in bed.
- Persistent daytime drowsiness or difficulty concentrating.
- Relying on caffeine to function normally through the day.
Sources & References
How Much Sleep Do I Need? — Centers for Disease Control and Prevention (CDC)
Placeholder reference for demonstration purposes — verify the current publication and URL before relying on this citation.
About the author
Mei-Lin Chen
Health & Lifestyle Writer
8 pieces published
