Placing a garlic clove under your pillow might sound like something from a grandmother’s tale, but this centuries-old tradition has more value than meets the eye. Across cultures, garlic has long been revered not just for its culinary punch but for its medicinal potential. Many people now turn to this simple remedy to improve sleep, boost immunity, relieve congestion, and even repel insects — all while resting peacefully through the night.

One of the most immediate reasons people try garlic under the pillow is its ability to ease nasal congestion. Garlic contains a compound called allicin, which is released when crushed. Allicin has antimicrobial and anti-inflammatory properties that may help clear up blocked sinuses. While placing garlic near your pillow isn’t a cure, many claim the subtle vapors open up their nasal passages, making it easier to breathe and sleep through the night.

Garlic’s health effects go beyond breathing benefits. It’s also recognized for supporting the immune system. Even without eating it, the sulfuric compounds released into the air may help fend off minor infections. Although science hasn’t fully confirmed the effects of simply smelling garlic, there’s solid evidence of its antibacterial and antiviral power when consumed. People who sleep with garlic nearby often say they wake up feeling clearer and more energized, particularly during cold and flu season.

Another lesser-known benefit? Insect protection. Garlic’s potent smell is unpleasant to mosquitoes and other pests, making it a natural repellent during warmer months. Whether placed under the pillow or used as a diluted skin rub, garlic offers a chemical-free solution for seniors and others sensitive to bug bites.

Lastly, garlic may help improve sleep quality itself. Thanks to its B vitamins and mild sedative properties, garlic supports the nervous system and may reduce restlessness. While results vary by person, this natural method is worth a try for those battling insomnia or frequent night waking.

To use it, place a fresh clove (unpeeled or in a pouch) under your pillow and replace it every few nights. If the odor is too strong, crushing isn’t necessary. While not for everyone, this simple ritual just might bring you a quieter night and a healthier tomorrow.