Quick Answer: Yes, chamomile tea helps you sleep -- clinical trials show improved sleep quality scores, shorter sleep onset times, and reduced anxiety in people who consume chamomile regularly. The effect is moderate rather than dramatic, making chamomile best suited to people with mild sleep difficulties, particularly those driven by stress or anxiety.
In This Guide
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Chamomile tea is widely recommended as a natural sleep aid, but does it actually work? The honest answer, backed by clinical evidence, is yes -- with important qualifications about effect size and who is most likely to benefit. This article reviews the key studies and translates their findings into practical guidance.
Adib-Hajbaghery and Mousavi 2017: The Key RCT
The most methodologically rigorous study on chamomile and sleep is the 2017 randomised controlled trial by Adib-Hajbaghery and Mousavi, published in Complementary Therapies in Medicine. This study is the most frequently cited in the clinical literature and provides the strongest direct evidence for chamomile's sleep effects.
Study design: 60 elderly institutionalised patients (mean age 68.63 years) were randomly allocated to receive either 400 mg chamomile extract capsules twice daily or placebo for four weeks. Sleep quality was measured using the Pittsburgh Sleep Quality Index (PSQI), a validated 19-item questionnaire covering sleep latency, duration, efficiency, disturbances, use of sleep medication, and daytime dysfunction.
Results: At the end of the four-week treatment period, the chamomile group showed significantly better total PSQI scores compared to the placebo group (p < 0.05). Specific improvements were observed in:
- Sleep latency (time taken to fall asleep)
- Overall sleep quality (self-rated)
- Daytime dysfunction attributable to poor sleep
Conclusion: The researchers concluded that chamomile extract significantly improves sleep quality in elderly populations and can be considered a safe, natural sleep aid for this group.
Why Elderly Populations Were Studied
Sleep difficulties are disproportionately common in older adults, and this population is also most vulnerable to side effects from pharmaceutical sleep aids (falls, cognitive impairment, dependence). This makes chamomile -- with its excellent safety profile -- particularly relevant for elderly individuals. The 2017 trial was designed to address precisely this gap in clinical knowledge.
Hieu et al. 2019: Systematic Review Findings
A broader picture comes from the 2019 systematic review and meta-analysis by Hieu et al., published in Burns and Trauma. This review examined multiple studies across several outcomes: state anxiety, generalised anxiety disorder, insomnia, and general sleep quality.
Key findings relevant to sleep:
- Chamomile demonstrated consistent anxiolytic (anti-anxiety) effects across studies, which is directly relevant to sleep because anxiety is one of the leading causes of sleep onset difficulties
- Chamomile extract (at doses of 220 mg to 1,100 mg daily) outperformed placebo in reducing anxiety symptoms in multiple trials
- Studies on direct sleep quality outcomes were fewer in number but consistently favourable for chamomile
- The review found chamomile's safety profile to be excellent, with adverse events rare and mild
The Hieu review also noted that chamomile's anti-anxiety effects likely mediate a significant portion of its sleep benefit -- by reducing the pre-sleep anxiety that delays sleep onset, chamomile helps people fall asleep faster even when its direct sedative effect is mild.
Effect Size: What the Numbers Mean
Understanding effect size is important for setting realistic expectations. In sleep research, PSQI score changes are a common benchmark:
| Intervention | Typical PSQI Improvement | Evidence Quality |
|---|---|---|
| Chamomile extract | 1.5 to 2.5 points | Moderate (RCTs available) |
| Valerian root | 1 to 2 points | Moderate (inconsistent) |
| Melatonin (0.5 to 5 mg) | 1 to 3 points | Good (many RCTs) |
| CBT-I (cognitive behavioural therapy) | 3 to 5 points | Excellent (strong evidence) |
| Zolpidem (prescription) | 4 to 6 points | Strong (regulatory-level) |
A PSQI score reduction of 1.5 to 2.5 points is clinically meaningful for people in the borderline-poor sleep range (PSQI scores of 6 to 10). It may not be sufficient for people with severe chronic insomnia (PSQI scores above 15), but for the large proportion of the population with mild to moderate sleep difficulties, it represents a real and noticeable improvement.
Who Benefits Most From Chamomile Tea
The research and clinical experience at Mattress Miracle suggest chamomile tea delivers the most benefit for:
- People with anxiety-driven insomnia: When racing thoughts and worry are the main obstacle to sleep, chamomile's apigenin/GABA mechanism directly addresses the cause
- Older adults: The Adib-Hajbaghery trial focused on elderly patients; this population has both the highest prevalence of sleep difficulties and the most to gain from a safe, non-pharmaceutical sleep aid
- People transitioning off caffeine: Replacing caffeinated evening drinks with chamomile removes a sleep inhibitor while adding a mild sleep promoter simultaneously
- People seeking a sleep routine: The ritual of preparing and drinking chamomile tea creates behavioural cues that signal the brain to downshift toward sleep, adding a non-pharmacological benefit layer
Dorothy on Realistic Expectations
"We always tell customers to think of chamomile as a supportive tool rather than a cure. If you are lying awake for two hours every night with severe insomnia, chamomile tea alone is not going to fix that. But if you are a moderately stressed adult who struggles to switch off at bedtime, it often makes a genuine, noticeable difference."
-- Dorothy, Sleep Specialist, Mattress Miracle Brantford
Limitations of Current Research
The honest review of chamomile research must acknowledge its limitations:
- Most trials use chamomile extract capsules rather than brewed tea; the bioavailability of apigenin from tea may differ from standardised extracts
- Sample sizes in available trials are relatively small (the landmark 2017 trial had 60 participants)
- Most studies are short-term (four to eight weeks); long-term effects are less studied
- Blinding is difficult in herbal studies because the distinctive flavour of chamomile makes placebo control challenging
- More research is needed in younger, healthy adult populations
Practical Application
Based on the available evidence, here is how to use chamomile tea most effectively for sleep:
- Drink one to two cups of quality chamomile tea 30 to 45 minutes before bed
- Use pure chamomile (not a blend with caffeinated teas)
- Steep for five to ten minutes, covered, to maximise apigenin extraction
- Use chamomile consistently for at least two to four weeks before evaluating its effect
- Combine with sleep hygiene fundamentals: consistent sleep schedule, dark and cool bedroom, no screens after 9pm
The Bigger Sleep Picture
At Mattress Miracle in Brantford, our team understands that sleep is a system. Chamomile tea can be one piece of that system, alongside the right mattress, pillow, and room temperature. Come in and let us help you assess the full picture.
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Call 519-770-0001Frequently Asked Questions
How many nights does chamomile take to work?
Some people notice a calming effect from the first night. Full benefits on sleep quality tend to build over two to four weeks of consistent nightly use, consistent with the duration of studies showing positive outcomes.
Is chamomile tea or chamomile extract more effective for sleep?
Clinical trials have primarily used standardised extracts (400 mg to 1,100 mg daily), which provide a consistent apigenin dose. Brewed tea provides less standardised dosing but offers the additional benefit of the wind-down ritual. Both forms have value.
Does chamomile tea help you sleep through the night?
The primary benefit documented in research is improved sleep onset and overall sleep quality scores rather than specifically reduced night wakings. However, better initial sleep and reduced anxiety throughout the night may improve sleep continuity for some people.
Can chamomile tea replace CBT-I for insomnia treatment?
No. Cognitive Behavioural Therapy for Insomnia (CBT-I) remains the first-line treatment recommended by sleep medicine organisations and produces larger, more durable improvements than any herbal supplement. Chamomile may be a useful complement but not a replacement.
Sources
- Adib-Hajbaghery, M., & Mousavi, S. N. (2017). The effects of chamomile extract on sleep quality among elderly people: A clinical trial. Complementary Therapies in Medicine, 35, 109-114.
- Hieu, T. H., Dibas, M., Surber, C., & Tran, L. (2019). Therapeutic efficacy and safety of chamomile for state anxiety, generalised anxiety disorder, insomnia, and sleep quality: A systematic review and meta-analysis. Burns and Trauma, 7, 46.
- Buysse, D. J., Reynolds, C. F., Monk, T. H., Berman, S. R., & Kupfer, D. J. (1989). The Pittsburgh Sleep Quality Index: A new instrument for psychiatric practice and research. Psychiatry Research, 28(2), 193-213.
- Morin, C. M., & Benca, R. (2012). Chronic insomnia. The Lancet, 379(9821), 1129-1141.
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