What Are the Side Effects of Drinking Chamomile Tea at Night? Do Sleep Teas Like Twinings Sleep Cause Them Too?

For most healthy adults, chamomile tea at night causes no side effects at all. When something does show up, it is usually mild: a slightly upset stomach, or an allergic reaction in people who are sensitive to the daisy plant family. Here is what to watch for, who should take extra care, and why some sleep teas leave people groggy while plain chamomile does not.

Can chamomile tea cause side effects at night?

For most healthy adults, chamomile tea at night causes no side effects. When they do occur, they are usually mild: an upset stomach, nausea, or an allergic reaction in people sensitive to plants in the daisy family. Chamomile is traditionally valued for its gentle, calming effect, and one or two cups before bed is a common amount.

The Mayo Clinic and the National Center for Complementary and Integrative Health (NCCIH) both describe chamomile as generally well tolerated when used as a tea. Because it is a food-level herb, most people simply notice a warm, settled feeling.

Who should be careful with chamomile tea?

People allergic to ragweed, daisies, or chrysanthemums should be cautious, since chamomile belongs to the same plant family and can trigger itching, rash, or swelling. Anyone taking blood thinners or sedative medicines should ask a healthcare provider first, because NCCIH notes chamomile may interact with some medications.

If you are pregnant or breastfeeding, read our guides on sleepytime tea in pregnancy and sleepytime tea while nursing, and check with your provider.

Do sleep teas like Twinings Sleep cause side effects too?

The Twinings Superblends Sleep blend lists valerian and orange blossom, so its side effects are mostly those of valerian rather than chamomile. The most commonly reported are headache, dizziness, stomach upset, and feeling groggy the next morning. Effects vary by person, and a blend without valerian may suit you better if these appear.

NCCIH says valerian appears safe for most adults in the short term, while long term safety is not well studied. For a deeper look, see what to know about sleep tea side effects and whether you can drink valerian tea every night.

Why do I wake up groggy or have vivid dreams after sleep tea?

Morning grogginess and vivid dreams are the two most common complaints with sleep teas, and valerian is the usual suspect. Try a smaller cup, drink it earlier in the evening, or take a few nights off. If grogginess lingers or you feel unsafe driving, stop and speak with a healthcare provider.

Many people who want a gentler option reach for a chamomile, lavender and lemon balm blend such as RelaxCalm. Those who prefer a classic valerian evening ritual can try Valerian Deep Sleep Tea, starting with one cup and noticing how they feel the next day. More on dreams here: why sleep tea gives vivid dreams.

How do I avoid waking up to pee after bedtime tea?

Drink your last cup about 60 to 90 minutes before bed and keep it to one mug, around 8 ounces. Sip it slowly, then use the bathroom right before lights out. Large evening volumes are the main reason sleep tea leads to a 2am bathroom trip. See our full guide on how long before bed to drink sleep tea.

When should I see a professional?

See a healthcare provider if you have an allergic reaction (hives, swelling, trouble breathing), if side effects continue after you stop the tea, or if you need sleep help for more than a few weeks. Persistent insomnia can have causes tea cannot address, and pregnant or nursing parents should check first.

For more evening routines, browse our natural sleep aid guide and the Secrets of Tea wellness guide.

This article is for general educational purposes and is not medical advice. Secrets of Tea products are not intended to diagnose, treat, cure, or prevent any disease. These statements have not been evaluated by the FDA. Consult your healthcare provider before starting any new supplement.