Why am I tired when I wake up, even after a full night
Sleeping enough hours doesn't guarantee an easy wake-up. This paradox is often explained by exactly which point in the cycle you wake up at.
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Sleep inertia
Waking up during deep sleep triggers sleep inertia: grogginess and confusion for 15 to 30 minutes.
Practical solutions
- Use a wake time calculator to time your alarm for the end of a cycle.
- Keep regular hours.
- Avoid screens before bed.
Popular picks
Wake-Up Light with Dawn Simulation
A lamp that gradually brightens before your alarm to mimic a sunrise — handy for dark winter mornings, shift work, jet lag or anyone who struggles to wake up gently.
See on Amazon →Smart Light-Based Alarm Clock
A light-based alarm clock that can time your wake-up to a lighter phase of your sleep cycle, pairing naturally with tools that estimate your sleep cycle timing.
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