Getting a full night’s rest can feel elusive. For the millions of people who struggle to fall asleep or stay asleep, the search for natural, effective remedies is ongoing. Essential oils have emerged as one of the most popular options—and for good reason. A systematic review published in the Journal of Alternative and Complementary Medicine found that inhaling essential oils can help people with mild sleep difficulties, a finding that aligns with centuries of aromatherapy practice.
But not all essential oils work the same way. Some calm an overactive nervous system. Others reduce cortisol levels, slow the heart rate, or promote deeper stages of sleep. Understanding which oils do what—and how to use them—can make a genuine difference in your nightly routine.
This guide covers the top 10 essential oils for sleep, the science behind each one, and practical tips for incorporating them into your wind-down ritual.
What Are Essential Oils—and How Do They Work?
Essential oils are concentrated plant extracts drawn from roots, flowers, peels, bark, and leaves. As integrative medicine specialist Dr. Yufang Lin of the Cleveland Clinic explains, plants produce phytochemicals that benefit not just the plant itself, but people too. Because it takes an enormous amount of raw material to produce even a small amount of oil—around 250 pounds of lavender flower to make just one pound of lavender oil—essential oils are highly potent botanical medicines.
When inhaled, essential oil molecules travel through the olfactory system and directly stimulate the brain’s limbic system, which regulates emotion, memory, and stress response. This is why certain scents can shift your mood within seconds. When applied to the skin (always diluted with a carrier oil), the compounds are absorbed into the bloodstream, extending their effects.
The Top 10 Essential Oils for Sleep
1. Lavender
Lavender is the most studied essential oil for sleep—and the results consistently support its use. A study published in Chronobiology International found that inhaling lavender before bed increased the amount of deep sleep participants experienced, while reducing light sleep. A separate study out of Thailand found that lavender inhalation decreased blood pressure, heart rate, and skin temperature, with participants reporting feeling fresher and more relaxed afterward.
Dr. Lin calls lavender her go-to oil, noting that it’s gentle enough for most people and versatile in how it can be applied. Add it to a diffuser, mix it into a pillow spray, or blend it with a carrier oil for topical application on pulse points before bed.
2. Chamomile
The link between chamomile and relaxation is well established—anyone who has sipped chamomile tea before bed has experienced it firsthand. Chamomile essential oil carries similar benefits. A study published in the International Journal of Aromatherapy examined the effects of Roman chamomile on mood and alertness and found that participants who inhaled it became noticeably calmer and drowsier.
Chamomile has a soft, apple-like floral scent that blends well with lavender and cedarwood. Use it in a diffuser for 30 minutes before bed or add a few drops to a warm bath to help the body begin its natural transition toward sleep.
3. Cedarwood
Cedarwood has a warm, woody scent that is both grounding and deeply calming. Its sleep-promoting effects come down to a compound called cedrol, which has been shown to shift the body’s autonomic nervous system toward a more restful state. Research published in the journal Autonomic Neuroscience found that inhaling cedrol increased activity in the parasympathetic nervous system—sometimes called the “rest and digest” system—while decreasing activity in the sympathetic nervous system, which controls the “fight or flight” response.
In practical terms, cedarwood lowers your heart rate, reduces adrenaline, and signals to your body that it is safe to relax. The Cleveland Clinic also highlights cedarwood oil as a useful tool for both sleep and anxiety. It pairs particularly well with lavender and ylang-ylang in a bedtime blend.
4. Ylang-Ylang
Ylang-ylang has a rich, floral scent commonly found in luxury perfumes, but its benefits extend well beyond fragrance. A Korean study found that participants who inhaled a blend of ylang-ylang, lavender, and bergamot once daily for four weeks experienced measurable reductions in stress, anxiety, and blood pressure by the end of the study period.
One thing to note: ylang-ylang is potent, and too much of it can become overwhelming. Aromatherapists recommend using it sparingly—a drop or two is enough. It works best as part of a blend rather than on its own.
5. Bergamot
Bergamot is perhaps best known as the distinctive scent behind Earl Grey tea, but its applications in sleep support are gaining well-deserved attention. Research highlighted by the Cleveland Clinic confirms that bergamot essential oil reduces anxiety, lifts mood, and lowers blood pressure—all responses that support a smoother transition into sleep.
One important caution: bergamot is photosensitizing, meaning it can increase your skin’s sensitivity to sunlight. Avoid applying it topically before sun exposure. For sleep purposes, diffusing it or using it in a pillow spray eliminates that concern entirely.
6. Jasmine
Jasmine may be more delicate in appearance than in effect. Research conducted at Wheeling Jesuit University by Professor Bryan Raudenbush monitored the sleep quality of 20 people over three consecutive nights. Participants either inhaled jasmine, lavender, or no scent, all pumped directly into the bedroom air. Those who slept with jasmine experienced improved sleep quality, less physical movement during sleep, and reported lower anxiety and sharper cognitive function upon waking.
Jasmine’s scent is sweet and floral, and it diffuses beautifully. For those who find lavender overused or simply prefer a different profile, jasmine is a compelling alternative with solid research behind it.
7. Sandalwood
Sandalwood has been used in meditation and ritual practices for centuries, and modern research is beginning to explain why it has such a calming effect. The key compound is santalol, which is known to have sedative properties. A Japanese study found that sleep-deprived rats that inhaled sandalwood oil experienced decreased total waking time and an increase in deep sleep, leading researchers to theorize that it could serve a similar function in humans.
Beyond sleep, a study published in Complementary Therapies in Clinical Practice found that sandalwood oil reduced anxiety in palliative care patients—a particularly demanding environment. Its warm, creamy, woody scent makes it grounding and easy to combine with other oils like lavender or frankincense.
8. Neroli
Neroli is distilled from the blossoms of the bitter orange tree. It is softer and more floral than regular orange oil, and it has a particularly notable research profile in stress reduction. A randomized controlled trial published in Evidence-Based Complementary and Alternative Medicine studied 63 healthy post-menopausal women who inhaled either neroli oil or almond oil for five minutes, twice daily, for five days. Those in the neroli group showed significantly lower blood pressure, cortisol levels, and estrogen compared to the control group.
Lower cortisol, in particular, is directly relevant to sleep quality. Cortisol is the body’s primary stress hormone, and elevated levels at night are a well-documented contributor to insomnia. Neroli is one of the more underrated oils on this list—worth exploring for anyone dealing with stress-related sleep issues.
9. Frankincense
Known as the “king of oils,” frankincense has a rich, woody, and slightly spicy scent that has been central to spiritual and healing traditions across many cultures. The Cleveland Clinic notes that frankincense can help with inflammation, mood, and sleep, and research supports its use in reducing anxiety.
Frankincense works particularly well as a diffusion oil during a pre-sleep meditation or breathing practice. Its ability to slow breathing and promote a sense of deep calm makes it a natural companion to a mindfulness-based wind-down routine. Always dilute before skin application.
10. Vanilla
Vanilla rounds out this list with something unexpected: robust anti-anxiety effects. A study published in the Journal of Magnetic Resonance Imaging tested the effects of heliotropin, a vanilla-like scent, on 57 patients undergoing MRI procedures. Those who inhaled the vanilla-scented air experienced significantly less anxiety than those who breathed unscented air during the same procedure.
For sleep purposes, vanilla’s soft, familiar warmth makes it an approachable oil—especially for those new to aromatherapy. It blends well with cedarwood and lavender, creating a rich, comforting scent that signals the brain to slow down.
How to Use Essential Oils for Better Sleep
Knowing which oils to use is only part of the equation. How you use them matters just as much.
Diffusing is the most popular method. Add a few drops of your chosen oil—or a blend—to a diffuser with water and run it in your bedroom for 30 to 60 minutes before sleep. This fills the space with a consistent, gentle scent without requiring any direct skin contact.
Pillow sprays are another effective option. Combine a few drops of essential oil with distilled water in a dark glass bottle, shake well before each use, and mist lightly onto your pillow before bed. Because oil and water naturally separate, shaking is essential.
Topical application delivers a more sustained effect. Always dilute your chosen oil in a carrier oil—jojoba, coconut, or sweet almond oil work well—before applying to pulse points like the wrists, temples, or the back of the neck. The ratio is typically two to three drops of essential oil per teaspoon of carrier oil.
A warm bath is one of the most relaxing delivery methods available. Add a few drops of essential oil to your bathwater about an hour before bed. The combination of warm water, steam inhalation, and topical absorption creates a deeply restorative effect.
Blending for Better Results
Aromatherapists often combine multiple oils to create what they call “synergies”—blends where the combined effect is greater than the sum of individual oils. Valerie Bennis, president of aromatherapy company Essence of Vali, recommends a nighttime synergy of lavender, marjoram, cedarwood, and ylang-ylang, a combination she has been using professionally for more than 18 years.
If you are new to blending, start with pre-made aromatherapy blends from reputable brands rather than creating your own from scratch. Achieving a balanced scent combination takes practice, and using too much of a strong oil like ylang-ylang can result in an overwhelming smell rather than a calming one.
A Few Safety Considerations
Essential oils are powerful, and a little goes a long way. Dr. Lin advises against using them routinely without variation, as the body can adapt over time and reduce their effectiveness. Rotating between two or three oils, or taking occasional breaks, helps maintain their impact.
Always dilute essential oils before applying them to skin. Most oils should never be ingested unless under the guidance of a trained herbalist. Certain oils—including tea tree and eucalyptus—can be harmful to children and pets, so take care when diffusing in shared spaces.
Pregnant women, people with epilepsy or high blood pressure, and those with compromised immune systems should consult a healthcare provider before using essential oils regularly.
Rest Starts With the Right Routine
Essential oils are not a substitute for good sleep hygiene, but they can be a genuinely useful addition to a bedtime routine. The science behind oils like lavender, cedarwood, jasmine, and neroli is compelling, and the methods for using them are simple enough that anyone can start tonight.
Choose one oil, try it consistently for a week, and pay attention to how your sleep quality shifts. From there, experiment with combinations and methods until you find what works best for you. The path to a more restful night may be simpler—and better-smelling—than you expected.