Sleep Health
CDC and National Sleep Foundation guidelines, plus how to find your personal optimal sleep duration.
For adults 18–64. Adults 65+ may thrive on 7–8 hours.
Increased risk of cardiovascular disease, type 2 diabetes, weight gain and cognitive decline.
Habitual oversleeping can signal underlying depression, hypothyroidism or undiagnosed sleep disorder.
On vacation, sleep without an alarm for 2 weeks. Your natural wake time reveals your true need.
Last reviewed February 2026 against current US sleep medicine guidelines by the Sleep Disorder Symptoms editorial team. This article is educational and is not medical advice — see our medical disclaimer and editorial policy.
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