Aromatherapy and Sleep: Evidence, Limitations, and Safety

Stress, schedule changes, family concerns, illness, grief, and changes in the sleep environment can all make it harder to settle down at night. Some people incorporate aromatherapy into their bedtime routine because they find certain scents pleasant or relaxing.

Aromatherapy should not, however, be presented as a proven treatment for insomnia, anxiety, depression, or another health condition. Research into aromatherapy and sleep remains limited, and results do not establish that a particular essential oil will help everyone sleep.

Editor’s note: This article provides general educational information and is not medical advice. Aromatherapy should not replace evaluation or treatment from a qualified healthcare professional.

What Is Aromatherapy?

Aromatherapy generally refers to using plant-derived essential oils through inhalation or, when appropriately formulated and diluted, application to the skin. Lavender, Roman chamomile, sandalwood, neroli, ylang-ylang, marjoram, and patchouli are among the scents commonly associated with aromatherapy.

Smell is connected with areas of the brain involved in memory and emotion. A familiar fragrance may therefore become part of a personal wind-down ritual. That experience is subjective, though, and should not be confused with evidence that the fragrance treats a sleep disorder.

What Does the Research Say About Sleep?

Some studies have reported improvements in self-reported sleep quality among people using aromatherapy. However, researchers have also noted limitations such as small study groups, inconsistent methods, and differences in the products being tested.

The National Center for Complementary and Integrative Health says larger and more rigorous studies are needed before reliable conclusions can be reached. Evidence specifically supporting lavender aromatherapy for insomnia also remains unclear. Review the NCCIH research summary.

The most accurate conclusion is that some people may enjoy aromatherapy as part of a bedtime routine, but it has not been proven to treat insomnia or guarantee faster or better sleep.

Ways to Use Aromatherapy More Cautiously

Essential oils are concentrated products. Instructions differ by oil and formulation, so always follow the product label. Common approaches include:

• Using a diffuser designed for essential oils in a ventilated room
• Choosing a commercially prepared, properly diluted topical product
• Adding only products specifically labeled for bath use to bathwater
• Using a scented sachet or another non-liquid fragrance product away from the face
• Choosing a candle for fragrance while following ordinary fire-safety precautions

Do not place undiluted essential oil directly on the skin, pillow, mattress, or bedding. Direct contact can cause skin irritation, and placing oil near the face may irritate the eyes or airways.

Chamomile tea and chamomile essential oil are different products. An oil intended for fragrance or topical use should never be swallowed simply because the corresponding plant is also used in food or tea.

Avoid Homemade Sleep-Oil Recipes

Online recipes often specify exact combinations of lavender, jasmine, spikenard, or other oils. These recipes may not account for differences in concentration, product purity, allergies, medications, medical conditions, or the intended method of use.

For that reason, we do not recommend a homemade essential-oil recipe for insomnia. Use commercially prepared products according to their labels, and consult a qualified healthcare professional when individual safety is uncertain.

“Natural” Does Not Mean Risk-Free

Plant-derived products can still cause unwanted reactions. Depending on the oil and method of use, potential concerns include:

• Headache, coughing, or airway irritation
• Skin irritation or an allergic reaction
• Eye irritation
• Increased sensitivity to sunlight from certain oils
• Interactions with medications or sedating products
• Poisoning if concentrated oils are swallowed
• Risks to children or pets from spills or accidental ingestion

Stop using a product if it causes coughing, headache, breathing discomfort, a rash, or another concerning reaction. Seek urgent medical care for difficulty breathing or another severe reaction.

Keep essential oils and diffuser liquids secured and out of reach of children and pets. People who are pregnant or breastfeeding, take medications, have allergies or respiratory conditions, or are considering essential oils for a child should consult an appropriate healthcare professional first.

The FDA specifically notes that claims about treating anxiety, depression, insomnia, or helping someone sleep may cause an aromatherapy product to be regulated as a drug. A plant source does not exempt a product from applicable safety and marketing requirements. Read the FDA’s aromatherapy guidance.

Aromatherapy Is Not a Substitute for Insomnia Care

Insomnia is more than an occasional restless night. Persistent difficulty falling asleep, staying asleep, or obtaining satisfactory sleep can have several possible causes.

For long-term insomnia, cognitive behavioral therapy for insomnia, or CBT-I, is usually recommended as the first treatment option. A healthcare professional can also evaluate whether medications, stress, pain, sleep apnea, or another condition may be contributing to the problem. Learn about insomnia treatment from the National Heart, Lung, and Blood Institute.

Seek professional guidance when sleep problems:

• Continue for an extended period
• Regularly interfere with daytime functioning
• Occur with loud snoring, gasping, or breathing pauses
• Cause dangerous daytime sleepiness
• Appear alongside significant changes in mood or health

Create a Personal Wind-Down Routine

Aromatherapy can be approached as an optional sensory preference rather than a medical treatment. Some people may enjoy pairing a pleasant fragrance with quiet reading, gentle stretching, meditation, or another calming evening activity. Others may be sensitive to fragrance and prefer a scent-free bedroom.

A consistent schedule and a cool, dark, quiet, and comfortable bedroom remain practical foundations for a bedtime routine. Nest Bedding offers mattresses, pillows, toppers, and bedding designed around different comfort and temperature preferences.

Rest well.