"Seven, eight hours" - that's the standard answer to the question of how much sleep one needs. But the truth is more nuanced: how much sleep a person needs depends heavily on their age and also varies individually.
The short answer: Adults generally need 7–9 hours of sleep, children and teenagers significantly more, and older people often slightly less – with an altered sleep structure. Besides duration, sleep quality is crucial.
Key takeaways
- Adults: mostly 7–9 hours per night.
- Children and teenagers need significantly more sleep.
- Sleep structure changes with age – often with slightly less deep sleep.
- Quality (undisturbed cycles) is as important as pure duration.
Sleep requirements by age
| Age Group | Recommended Sleep |
|---|---|
| Infants (4–12 months) | 12–16 hours (incl. naps) |
| Toddlers (1–2 years) | 11–14 hours |
| Preschool (3–5 years) | 10–13 hours |
| School-aged children (6–12 years) | 9–12 hours |
| Teenagers (13–18 years) | 8–10 hours |
| Adults (18–64 years) | 7–9 hours |
| Seniors (65+) | 7–8 hours |
How do I know if I'm getting enough sleep?
A good indicator is how you feel during the day. Signs of sufficient sleep include: waking up mostly refreshed, being alert and focused during the day, and not needing large amounts of caffeine to get through the day. The common opposite: daytime fatigue, irritability, and concentration problems.
Quality beats quantity
Eight hours in bed does not mean eight hours of restful sleep. If sleep is constantly interrupted, the valuable deep and REM phases are missing – more on this in the article Sleep Phases Explained. Therefore, it is worth investing in sleep hygiene and a quiet sleeping environment.
The consequences of too little sleep
Chronic sleep deprivation affects body and mind: concentration and memory suffer, mood declines, the immune system is weakened, and in the long term, the risk of various health problems increases. Good sleep is therefore not a luxury, but the foundation of health.
Tips for sufficient and good sleep
- Maintain regular sleep times – even on weekends.
- Establish an evening routine and reduce screen time. See Fall asleep faster.
- Keep the sleeping environment quiet, dark, and cool.
- Ensure a supportive, calm sleeping surface.
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The foundation for restful hours
How restful your sleeping hours are also depends on the sleeping surface. The Ora Ultra mattress adapts to your body with EvoPoreHRC premium memory foam and supports undisturbed, deep sleep.
Frequent questions about sleep requirements
How much sleep does an adult need?
Typically 7 to 9 hours per night. The exact requirement is individual, the crucial thing is to feel awake and rested during the day.
Is 6 hours of sleep enough?
For most adults, 6 hours is too little in the long run. It's manageable in the short term, but in the long term, fatigue, concentration, and health problems are likely.
Do older people need less sleep?
The requirement only decreases slightly (often 7–8 hours), but the sleep structure changes: sleep becomes lighter and more frequently interrupted, and the proportion of deep sleep decreases.
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