The article discusses sleep necessity and the personalized nature of sleep needs. Harvard expert Elizabeth Klerman emphasizes observing natural sleep patterns without alarms to determine individual requirements. Persistent feelings of fatigue despite adequate sleep may require medical consultation. Recommendations for better sleep include establishing a bedtime routine and avoiding stimulants like caffeine or disturbing media before bed. Klerman also notes that waking up refreshed varies per individual, as different brain regions activate at different times upon waking.
If you wake up and you're not feeling rested, even after several nights of eight hours of sleep, you should consider seeing a sleep doctor.
Different parts of your brain wake up at different rates, so it's not expected that you immediately feel totally alert.
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