How long does it take for chamomile tea to make you sleepy?

According to Breus, you should drink one cup of chamomile tea about 45 minutes before bed if you're hoping to induce sleepiness. That will give your body enough time to metabolize the tea, and the chemical compounds that cause those sedative feelings to kick in.

Can chamomile knock you out?

It's a classic nightcap for a reason—not only is chamomile light and subtly sweet, but the caffeine-free herb is "an ideal sleep support because it doesn't force your body into anything; it doesn't knock you out, sedate you, or make you drowsy,” Kluge explains.