Andrew Huberman· PhD
Remember, even if you can fall asleep fine after drinking coffee three or four hours before it’s going to really mess up the architecture of your sleep.
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We can't find evidence that holds up here. Proponents are reasoning from mechanism or analogy rather than direct human data, and the most credible skeptics raise objections we can't dismiss.
Remember, even if you can fall asleep fine after drinking coffee three or four hours before it’s going to really mess up the architecture of your sleep.
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even if you can fall asleep after drinking caffeine ingesting caffeine within the 10 to 12 hours prior to bedtime is simply not a good idea because of the ways it disrupts the architecture of sleep
so by the way folks don't drink caffeine within eight hours of going to sleep
caffeine has this long halflife so if you're going to indulge which I do do so early in the day beware the afternoon caffeine
And so I worry that when people are drinking coffee or caffeinated beverages of any type within 12 hours of their sleep, they're still having 12 or you know, at least 25% of the caffeine in their body physiologically. And wouldn't that affect sleep metrics and like sleep architecture?
we know that caffeine found in coffee especially this coffee that has a lot of caffeine in it has a half life of 5 hours that means that if you drink a cup of coffee with 200 milligram of caffeine in it at noon at 12:00 p.m. you could potentially have 50 milligrams a quarter of that amount of caffeine still in your body at 1 p.m. when you go to sleep that can disrupt sleep architecture for All Humans but especially those people who are sensitive to that caffeine
Caffeine has a half-life of about six or seven hours. And a half-life simply means the amount of time it takes for a 50% of the drug to still be in your system or 50% of it to be cleared. Caffeine has a quarter life of about 12 hours.