Lifestyle

Hours of sleep (by age)

Lifestyle.

In practice

It depends on the case; there is no single guideline.

Effect by goal · level of evidence

How much to sleep

association Low study (A)

Review: the need for sleep declines with age and varies between people due to genetics and other factors. General recommendations by age range are useful as a guide, but should be adjusted case by case. There is no single number valid for everyone.

View the study (study) →

In depth

Lifestyle · Highest evidence: Low · 1 finding

Findings

How much to sleep — association (Low, study). Review: sleep need declines with age and varies between people because of genetics and other factors. General recommendations by age group are useful as a guide, but should be adjusted case by case. There is no single number valid for everyone. 30568521

Information, not medical advice. Prescription drugs require a doctor.

Information, not medical advice. Scientific evidence reflects the quality of the studies.