Herbal Teas for Sleep: 8 Options and What Research Says

Short answer: Chamomile, valerian, lemon balm, lavender and passionflower are the herbal teas most often used for sleep. A warm, caffeine-free cup can be a relaxing part of a bedtime routine, but research shows small and inconsistent effects at best, and no herbal tea is a proven treatment for insomnia. Peppermint, rooibos and ginger are pleasant caffeine-free choices with no evidence for sleep. Don’t mix sleepy herbs with alcohol or sleeping pills, and see a doctor if poor sleep lasts more than a few weeks.

Reaching for a cup of herbal tea before bed is one of the oldest sleep habits around. It’s warm, it’s caffeine-free, and it gives you a few quiet minutes to wind down. Many herbs used in bedtime blends also have a long history in traditional medicine as calming or sleep-promoting plants.

This guide compares eight popular caffeine-free teas, explains what the research actually shows for each, and covers how to brew them, who should be careful, and what helps sleep more reliably. For more plant guides, see our herbs and teas section.

Herbal teas for sleep at a glance

Most studied: Valerian and chamomile
Best evidence: Limited: small, mixed trials
Caffeine-free, no sleep evidence: Peppermint, rooibos, ginger
When to drink: 30 to 60 minutes before bed
Don’t combine with: Alcohol, sleeping pills or other sedatives
Recommended first treatment for insomnia: Cognitive behavioral therapy for insomnia (CBT-I)

Eight caffeine-free teas compared

These teas differ in taste, in how much research supports them, and in who should avoid them. None works like a sleeping pill.

Tea	Taste	Evidence for sleep	Main caution
Chamomile	Mild, floral, apple-like	Limited; small mixed trials	Allergy in people sensitive to ragweed; may interact with warfarin
Valerian	Earthy, strong smell	Limited; many trials, inconsistent	Don’t mix with alcohol or sedatives; next-day grogginess
Lemon balm	Fresh, lemony, minty	Limited; small studies, often in blends	Can add to the effect of sedatives
Lavender	Strongly floral	Limited; mostly aromatherapy and capsule studies	Lavender oil capsules can cause burping and stomach upset
Passionflower	Mild, grassy	Limited; one small tea trial	Drowsiness; avoid in pregnancy
Peppermint	Cool, minty	None for sleep	Can worsen heartburn and reflux
Rooibos	Sweet, nutty, earthy	None for sleep	Generally well tolerated
Ginger	Spicy, warming	None for sleep	Can cause heartburn in large amounts

Evidence labels summarize human research on sleep. “None” means we found no good studies of that tea for sleep, not that it’s harmful.

What the research shows for each tea

Most sleep research on these herbs uses extracts or capsules rather than tea, so results don’t always apply to a cup brewed at home. Each finding below carries an evidence label, explained in our editorial policy.

Chamomile Limited evidence

Chamomile is the classic bedtime tea. A few small trials, mostly in older adults and new mothers, found chamomile extracts or tea improved how well people said they slept, but they didn’t consistently improve insomnia or measured sleep. The US National Center for Complementary and Integrative Health (NCCIH) says there isn’t enough evidence to show chamomile helps sleep problems. It’s gentle and pleasant, which makes it a sensible first choice. See our chamomile tea guide for more.

Valerian Limited evidence

Valerian root is the best-studied herbal sleep aid, but the results are inconsistent. Some trials found people fell asleep faster or slept better, while others found no difference from a placebo. The American Academy of Sleep Medicine advises doctors not to use valerian for chronic insomnia. Its strong, earthy smell puts many people off, so it’s often blended with other herbs. Our valerian tea guide covers the research in detail.

Lemon balm Limited evidence

Lemon balm is a lemony member of the mint family that’s traditionally used to calm nerves. Small studies suggest it may reduce restlessness and improve sleep, but many tested it combined with valerian or other herbs, so it’s hard to know how much lemon balm alone contributes.

Lavender Limited evidence

Lavender has been studied mostly as aromatherapy and as a standardized oil capsule for anxiety, where results are more encouraging. Inhaling lavender scent improved self-reported sleep in some small studies. Lavender tea itself hasn’t been well studied, and its strong floral flavor works best in small amounts, blended with chamomile or lemon balm.

Passionflower Limited evidence

Passionflower is traditionally used for anxiety and sleeplessness. In one small trial, adults who drank passionflower tea every night for a week rated their sleep quality slightly better than when they drank a placebo tea, though measured sleep didn’t change much. NCCIH says there isn’t enough evidence to know whether it helps sleep.

Peppermint, rooibos and ginger

These three teas are popular evening drinks because they’re naturally caffeine-free, but there’s no good evidence that they improve sleep. Peppermint may help after a heavy meal, ginger is often used for nausea, and rooibos has a naturally sweet taste that many people enjoy without sugar. They’re good choices if you want a warm, caffeine-free ritual and don’t enjoy the taste of chamomile or valerian.

Choosing and brewing a bedtime tea

Check the label: make sure the tea is caffeine-free. Some “relaxing” blends contain green or black tea, which do contain caffeine.
Use enough herb: one tea bag or 1 to 2 teaspoons of dried herb per cup is typical.
Cover while steeping: cover the cup for 5 to 10 minutes so aromatic oils stay in the drink. Valerian root is often steeped for 10 to 15 minutes.
Time it well: drink your tea 30 to 60 minutes before bed, and keep the cup small so you’re not woken by a full bladder.
Try blends: chamomile with lemon balm, or valerian with peppermint, can make stronger-tasting herbs easier to drink.
Skip the sugar: a little honey is fine, but a sugary drink late at night isn’t ideal.
Choose quality: loose herbs should smell fresh and look whole. Choose brands that test for contaminants, and check our guide on how to read a supplement label for herbal capsules.

Tip: make the tea part of a regular wind-down routine at the same time each evening: dim the lights, put your phone away and sip slowly. The routine may help as much as the herb itself.

Who should be careful

A cup of herbal tea is safe for most healthy adults. But herbs can have real effects, and concentrated products carry more risk than a weak tea.

Check with a doctor or pharmacist first if you

Take sleeping pills, anxiety medicines, opioids or sedating antihistamines, or drink alcohol in the evening. Valerian, passionflower, lemon balm and lavender may add to their sedative effects.
Are pregnant or breastfeeding: safety data are limited for most sleep herbs. Avoid passionflower and valerian, and ask your midwife or doctor before using any herbal remedy.
Are allergic to ragweed, daisies or marigolds: chamomile may cause an allergic reaction.
Take warfarin or other blood thinners: chamomile has been linked to rare bleeding problems in people taking warfarin.
Have heartburn or reflux: peppermint can make symptoms worse.
Have surgery coming up: stop sedating herbs about two weeks before, and tell your surgical team.
Are giving tea to children: ask a pediatrician first, and use only weak, child-appropriate amounts.

Stop using a herb if you notice rashes, stomach upset, headaches or next-day drowsiness. Don’t drive or use machinery until you know how a sedating herb affects you. See also our medical disclaimer.

Teas to avoid in the evening

Black, green, white and oolong tea: these come from the tea plant and contain caffeine. Even decaf versions contain a little.
Matcha and yerba mate: both are high in caffeine.
Strong diuretic teas: herbs such as dandelion and hibiscus may increase urination, which can mean more night-time trips to the bathroom.
“Slimming” or “detox” teas: these often contain laxatives such as senna or stimulants and don’t belong in a bedtime routine.

What helps sleep more reliably

If tea alone isn’t enough, these steps have much stronger evidence:

Keep a regular schedule: go to bed and get up at the same time every day, including weekends.
Get morning daylight: natural light early in the day helps set your body clock.
Limit caffeine after midday: caffeine can affect sleep for 6 hours or more.
Go easy on alcohol: it may help you fall asleep but disrupts sleep later in the night.
Make your bedroom cool, dark and quiet, and use the bed mainly for sleep.
Get up if you can’t sleep: after about 20 minutes, do something calm in dim light until you feel sleepy.

Cognitive behavioral therapy for insomnia (CBT-I) is the recommended first treatment for chronic insomnia and works better than any herbal remedy. It’s available through doctors, sleep clinics and some apps. Some people also try magnesium; our guide to types of magnesium explains what the research shows.

See a doctor if poor sleep lasts more than a few weeks, affects your daytime life, or comes with loud snoring, gasping during sleep, low mood or anxiety. These can be signs of conditions such as sleep apnea or depression that need proper treatment.

Herbal teas for sleep FAQ

What is the best tea for sleep?

Chamomile and valerian are the most studied, but neither has strong evidence. Chamomile is the gentlest place to start. The best tea is one you enjoy and drink as part of a calm bedtime routine.

Does caffeine-free mean a tea will help me sleep?

No. Caffeine-free teas won’t keep you awake the way regular tea can, but most have no proven effect on sleep. Peppermint, rooibos and ginger are good examples.

Can I drink sleepy tea every night?

For most adults, a cup of chamomile or another mild herbal tea every night is fine. For stronger herbs such as valerian, take breaks and talk to your doctor if you still need help sleeping after a few weeks.

How long before bed should I drink herbal tea?

About 30 to 60 minutes before bed works well. That gives you time to relax and to use the bathroom before you lie down.

When should I see a doctor about sleep?

If you have trouble sleeping at least three nights a week for more than a few weeks, feel very tired during the day, or snore loudly and stop breathing in your sleep, see a doctor.