This systematic review and meta-analysis examined chamomile's effects on sleep using 10 clinical trials with 772 participants. Chamomile improved sleep quality, especially by reducing awakenings and aiding sleep onset. However, it showed no significant impact on sleep duration, efficiency, or daytime function. The studies were limited by high variability, inconsistent methodologies, and subjective measures. While chamomile appears safe and mildly effective, more robust studies are needed to confirm its benefits for cognitive health.
Drinking chamomile tea before bed may help improve sleep quality by reducing awakenings and making it easier to fall asleep. However, its effects are modest and should complement good sleep hygiene practices, such as maintaining a consistent bedtime and reducing blue light exposure. Evidence is based on studies with variability in quality and outcomes, so benefits may vary.