Could Your Afternoon Coffee Still Be Keeping You Up?
Health
The caffeine in a late-afternoon coffee can affect sleep hours later. The NIH’s National Heart, Lung, and Blood Institute says its effects can last up to eight hours, though people’s responses vary.
If falling asleep is difficult, try moving your last caffeinated drink earlier and keep a short record of when you drank it and when you fell asleep. Include tea, cola and energy drinks when you track your intake.
If sleep problems continue or affect how you function during the day, bring that record to a healthcare provider. It can help start a conversation about what’s affecting your sleep.