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Behaviors18 mentions

Stop Caffeine by Mid-Afternoon

Set a caffeine cutoff well before your usual bedtime—ideally 8 to 12 hours earlier, and at minimum about 8 hours before sleep. This helps protect sleep quality and architecture, including deep and REM sleep, because caffeine can still fragment sleep and reduce slow-wave sleep even when it doesn’t keep you from falling asleep.

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Well, you've all heard me say that drinking caffeine in the eight to 10 hours before sleep is going to disrupt your sleep, even if you can fall asleep after caffeine.

Andrew Huberman · Your Top Health Questions Answered · Jul 27, 2026 · 3:34 · YouTube ↗
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