Limited evidenceSleep & relaxation

Herbal Sleep Teas

Bedtime blends of valerian, chamomile, lemon balm, passionflower and lavender. The trial evidence for the herbs is weak and inconsistent, and a tea bag delivers far less than the doses studied — the reliable part is the wind-down ritual itself.

Evidence last reviewed: August 2026

What the science says

Valerian for insomnia Limited evidence
A systematic review and meta-analysis of herbal medicine for insomnia found no significant improvement over placebo on objective or most subjective sleep measures for valerian, and a 2024 umbrella review concluded the evidence remains weak and inconsistent across reviews. Trials also vary widely in extract type and quality.
Chamomile for sleep quality Limited evidence
A systematic review and meta-analysis of randomised and quasi-randomised trials found chamomile improved sleep quality modestly, with a clearer signal for anxiety than for insomnia. The included trials were small and used chamomile extract capsules rather than tea.
The ritual matters more than the herb Limited evidence
A warm caffeine-free drink as part of a consistent pre-sleep routine is a standard sleep-hygiene recommendation, and the herb content of a tea bag is a fraction of trial doses. Expect a mild, mostly behavioural effect.

Dosage & safety

Studied doseOne bag steeped 5–10 minutes, 30–60 minutes before bed. For comparison, valerian trials used 300–600 mg of concentrated extract and chamomile trials around 270–1,500 mg — far more than a tea infusion provides.

SafetyGenerally very safe. Chamomile is in the daisy family and can cause reactions in people allergic to ragweed and related plants. Valerian can cause morning grogginess and vivid dreams and should not be combined with alcohol, benzodiazepines or other sedatives. Rare liver injury has been reported with valerian-containing products. Large fluid intake close to bedtime can itself wake you. Chronic insomnia is best treated with CBT-I rather than any tea.

Scientific references

Herbal medicine for insomnia: A systematic review and meta-analysis
Leach MJ, Page AT — Sleep Med Rev, 2015
Does valerian work for insomnia? An umbrella review of the evidence
Valente V, Machado D, Jorge S — Eur Neuropsychopharmacol, 2024
Therapeutic efficacy and safety of chamomile for state anxiety, generalized anxiety disorder, insomnia, and sleep quality: A systematic review and meta-analysis of randomized trials and quasi-randomized trials
Hieu TH, Dibas M, Surya Dila KA — Phytother Res, 2019

Where to buy

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