Garlic has long been known as a powerful natural remedy in traditional medicine, but few people realize that its benefits may extend beyond the kitchen—and even beyond what you consume. In recent years, an unusual habit has attracted growing attention: placing garlic by your bedside at night. While it may sound strange at first, many cultures and health advocates believe this simple practice offers surprising benefits for sleep, respiratory health, and overall well-being.

So what’s the reasoning behind it, and is there any science to support the claims?

A Natural Air Purifier with Antibacterial Properties

Garlic contains allicin, a sulfur-based compound released when garlic is crushed or cut. Allicin is known for its strong antibacterial, antiviral, and antifungal properties. When garlic is left near the bed—especially slightly crushed—it can release trace amounts of these compounds into the surrounding air.

Although it doesn’t replace proper ventilation or air purifiers, many people believe garlic can help reduce airborne microbes in enclosed spaces. This may be particularly appealing for those who sleep in small rooms or are prone to nighttime congestion and frequent colds.

Supporting Breathing and Reducing Nasal Congestion

One of the most common reasons people place garlic near their bed is to ease breathing during sleep. The natural aroma of garlic can help open nasal passages, especially for individuals suffering from mild colds, allergies, or sinus congestion.

Traditional remedies in parts of Asia and Europe have long used garlic to support respiratory health. Some people report that sleeping with garlic nearby makes it easier to breathe at night, reduces nighttime coughing, and improves overall sleep comfort—especially during seasonal changes.

Promoting Better Sleep Quality

Good sleep depends not only on comfort but also on a calm nervous system. Garlic contains compounds that may help relax the body by supporting circulation and reducing low-grade inflammation. While placing garlic by the bed is not a sedative, some users claim that its subtle scent has a grounding, calming effect that helps them fall asleep more easily.

Additionally, garlic has been associated with supporting healthy blood pressure and circulation. Indirectly, this may contribute to a more restful night, especially for people who experience nighttime restlessness.

A Traditional Method for Boosting Immunity

In folklore and traditional medicine, garlic has been viewed as a protective plant. In some cultures, it was placed near sleeping areas to ward off illness or “bad air.” While modern science doesn’t support mystical explanations, it does confirm garlic’s role in immune support.

By helping the body fight bacteria and viruses, garlic may reduce the likelihood of waking up with sore throats or early cold symptoms—particularly during colder months when infections spread more easily.

Repelling Insects Naturally

Another practical benefit is garlic’s ability to repel insects. The strong smell is unpleasant to mosquitoes and other bugs, making garlic a natural alternative to chemical repellents. Placing a clove or two near the bed may help keep insects away, especially in warm climates or during summer nights.

How to Use Garlic by Your Bed Safely

If you want to try this method, it’s important to do it correctly:

• Use one or two fresh garlic cloves

• Lightly crush them to activate allicin

• Place them in a small open container or wrap loosely in cloth

• Keep them at a short distance from your pillow to avoid overpowering smell

Replace the garlic daily to keep it fresh and prevent unpleasant odors or mold.

Who Should Avoid This Practice?

While garlic is generally safe, some people may be sensitive to strong smells or develop headaches or irritation. Those with asthma, scent sensitivity, or allergies should use caution. If you experience discomfort, remove the garlic immediately.