Mugwort and why its known for helping with sleep and dreaming

Mugwort has a long association with sleep and dreaming. Stories about vivid dreams and waking refreshed are part of what draws people to this herb. Here, I’m looking at those traditional beliefs alongside what we can actually say about the evidence.

Mugwort tea has been used as a traditional remedy to promote sleep and dreaming since ancient times. It is believed that drinking mugwort tea helps to relax the mind and body and make it easier to drift off to sleep. It is also believed that drinking mugwort tea helps to enhance dream recall and increase the vividness of dreams.

The compounds and the claims

Herbal writing often points to mugwort’s volatile oils, flavonoids, and polyphenols when discussing its effects. The original version of this post connected these compounds with relaxation, stress relief, and sleep. Those connections should be treated as claims to investigate, rather than established effects of drinking mugwort tea.

That includes the claim that thujone acts as a sedative. Its presence in an herb does not show that the herb is a safe or effective sleep aid. A compound’s activity and the effects of a cup of tea are different questions, and I want to be careful about joining them too quickly.

Sleep, cortisol, and dream recall

Another explanation you may come across is that mugwort helps regulate the sleep-wake cycle by stabilizing cortisol, a hormone involved in the body’s response to stress. The original post shared that explanation. There isn’t enough clinical evidence to present it as a demonstrated benefit of mugwort tea.

Mugwort is also associated with lucid dreaming. Lucid dreaming means being aware that you’re dreaming; some people also describe being able to influence the dream. Traditional accounts link mugwort with more vivid dreams and better recall. Those accounts are interesting, but they don’t establish that drinking the tea causes either experience.

A careful place to leave the question

Mugwort’s history in traditional medicine is worth reading about on its own terms. Claims about antispasmodic, antibacterial, anti-inflammatory, or antioxidant activity also need their own evidence. They don’t automatically tell us that an herb improves sleep, reduces anxiety, or supports overall health in people.

The National Center for Complementary and Integrative Health says very little research has been done on mugwort in people, and there isn’t enough evidence to determine whether it is useful or safe for a health condition. Mugwort should not be used during pregnancy. If you’re considering it for sleep or another health concern, talk with a qualified clinician, especially if you take medicines.

Current evidence and safety information. NCCIH: Mugwort