Caffeine can disrupt your sleep — even when consumed 12 hours before bed
www.psypost.org
A new study has found that a 400 mg caffeine dose disrupts sleep up to 12 hours before bedtime, yet many people fail to notice these disruptions, especially when consumed earlier in the day.
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The original was posted on /r/science by /u/mvea on 2024-12-21 11:01:35+00:00.

Original Title: Caffeine can disrupt your sleep — even when consumed 12 hours before bed. While a 100 mg dose of caffeine (1 cup of coffee) can be consumed up to 4 hours before bedtime without significant effects on sleep, a 400 mg dose (4 cups of coffee) disrupts sleep when taken up to 12 hours before bedtime.