Overview

Essential oils as a potential natural remedy for improving sleep quality 

In recent times, there has been a growing interest in holistic wellness practices, with essential oils emerging as a popular natural remedy for promoting relaxation and improving sleep quality.² These are aromatic compounds extracted from plants that possess various therapeutic properties including sedative, anxiolytic and mood-balancing effects. Their fragrant essences, utilised in traditional medicine systems for their medicinal and aromatic properties, have been prized for their ability to evoke feelings of calmness, induce relaxation, and enhance overall well-being.⁸

In the context of sleep hygiene, certain essential oils have shown promise in promoting restful sleep and alleviating symptoms of insomnia. 

Lavender, chamomile, bergamot, and valerian are essential oils well known for their potential sleep-inducing effects. They are believed to exert their therapeutic benefits through various mechanisms, including modulation of neurotransmitter activity, reduction of stress and anxiety, and enhancement of the onset of sleep and its duration. They provide a promising avenue to explore for individuals seeking non-pharmacological solutions to improve their sleep quality and overall well-being.^{1, 2, 3, 9}

Common sleep disorders and their impact on overall wellbeing

Insomnia is a common sleep disorder characterised by difficulty both falling asleep and staying asleep, despite there being adequate opportunities for sleep, which then leads to impairments and difficulties functioning during the daytime. Several other sleep disorders can disrupt normal sleep patterns and diminish overall sleep quality. 

Sleep apnoea is also a sleep disorder and is characterised by interruptions in breathing during sleep The resulting decreased oxygen in the blood leads to fragmented sleep. Other sleep disorders include restless legs syndrome and narcolepsy. 

Inadequate sleep can impair cognitive function, leading to difficulties in concentration, memory retention, decision-making, decreased alertness, slower reaction times, and increased susceptibility to errors and accidents.¹¹

Individuals with chronic insomnia are also at risk of developing mood disturbances, while those with pre-existing mental health conditions often experience worsening symptoms. 

Sleep plays a vital role in regulating cardiovascular function, therefore, sleep deprivation can increase the risk of hypertension, heart disease, stroke, and other cardiovascular conditions as well as produce an increased risk of obesity, insulin resistance, type 2 diabetes, and metabolic syndrome.¹⁰

Adequate sleep is also needed to support immune function and resilience against infections. The lack of it suppresses immune responses and increases susceptibility to viral illnesses leading to impairment of the body's ability to fight off pathogens.¹² 

Treatment options for sleep disorders

The management of sleep disorders typically involves a multifaceted approach.¹²

• Cognitive-behavioural therapy for insomnia (CBT-I) focuses on addressing maladaptive sleep habits and thought patterns through techniques such as sleep restriction, stimulus control, and relaxation training¹³     
• Pharmacological interventions, such as sedative-hypnotic medications (e.g., benzodiazepines and non-benzodiazepine hypnotics), may be prescribed for short-term management of insomnia
• Continuous Positive Airway Pressure (CPAP therapy) is the primary treatment for obstructive sleep apnoea which helps maintain an open airway, reduce apnoea episodes, and alleviate symptoms of sleep apnoea  
• Sleep hygiene habits and lifestyle modifications can significantly improve sleep quality and general well-being. These strategies may include maintaining a regular sleep schedule, creating a relaxing bedtime routine, avoiding stimulants and electronic devices before bedtime, and optimising sleep environment conditions
• Aromatherapy, using essential oils which is outlined in depth below

Aromatherapy with essential oils

Aromatherapy can be described as a complementary and alternative therapy involving the therapeutic use of essential oils to promote health and well-being. Wellness practitioners utilise essential oils in various methods of application, including inhalation, topical application, and diffusion, to address a wide range of health concerns and enhance overall quality of life.¹⁴ 

The oil extraction process involves careful harvesting and processing of plant materials to obtain the aromatic compounds in their purest form. These methods are steam distillation, expression or cold-pressing, solvent extraction, and carbon dioxide (CO2) extraction.¹⁹ 

The oils are typically stored in dark glass bottles to protect them from light and oxidation, which can degrade their quality over time. The resulting oils vary in aroma, colour, and chemical composition, depending on the plant species, growing conditions, and extraction method used.

The use of essential oils for their medicinal, aromatic, and spiritual purposes dates back thousands of years and spans various cultures and civilisations. 

Traditional medicine systems such as Ayurveda in India and Traditional Chinese Medicine (TCM), use them in conjunction with herbs, massage, and other natural remedies to restore balance and harmony within the body. These ancient healing traditions recognise the synergistic effects of plants with other modalities on physical, emotional, and spiritual health, They view essential oils as potent tools for holistic healing and transformation.         

Essential oils for enhancing sleep

In recent times, accessibility has made it easier for consumers to explore and incorporate essential oils into their daily routines, for relaxation, stress relief, reducing insomnia symptoms, and enhancing overall sleep duration and quality.

Common essential oils such as lavender oil, chamomile oil, bergamot oil, ylang-ylang oil, sandalwood oil, frankincense oil, clary oil, roman chamomile oil, valerian oil, and marjoram oil can be used in diffusers in the bedroom before bedtime, added to a warm bath, or applied topically to pulse points for relaxation.

How essential oils work to enhance sleep

Essential oils contain bioactive compounds that can interact with neurotransmitter systems in the brain, including gamma-aminobutyric acid (GABA), serotonin, and melatonin, which play key roles in regulating sleep-wake cycles and relaxation responses. By modulating these neurotransmitter pathways, essential oils can help to promote feelings of calmness and induce sleepiness.¹⁴

Their anxiolytic (anxiety-reducing) and sedative properties, can also help alleviate stress and tension, thereby facilitating the transition to sleep. Compounds such as linalool and linalyl acetate found in lavender, for example, have been shown to exert anxiolytic effects by acting on receptors in the central nervous system. ^{8, 9}

Ways you can use essential oils:

• Inhaling essential oils by diffusion can stimulate olfactory receptors in the nasal cavity, triggering neurochemical responses in the brain that influence mood, emotions, and physiological processes. Lavender and chamomile, for example, have been associated with reduced heart rate, blood pressure, and cortisol levels, indicative of a relaxation response conducive to sleep ^{15, 16}
• Topical application of essential oils – always diluted with a carrier oil, such as coconut or almond oil – directly to the skin at the wrists, temples, neck, chest, and soles of the feet with gentle massaging can promote relaxation
• Sprays/drops/mists –adding a drop or two of essential oil to a cotton ball or tissue and tucking it inside your pillowcase or between the sheets permits enjoyment of the aroma and its benefits throughout the night. Alternatively, using linen sprays or pillow mists infused with essential oils to freshen up bedding helps promote restful sleep 

Incorporating essential oils into your bedtime routine safely and mindfully can harness their natural properties to promote relaxation, reduce stress, and enhance overall sleep quality ^{9, 16}

Safety considerations and precautions when using essential oils

Essential oils are highly concentrated and potent substances that should be diluted before topical application to minimise the risk of skin irritation or sensitisation. The recommended dilution ratio for most adults is 1-3%, which equates to approximately 1-3 drops of essential oil per teaspoon of carrier oil.¹⁸

For your safety, please ensure you:

• Perform a patch test by applying a small amount of diluted oil to a small area and looking out for any signs of irritation or allergic reaction before applying essential oils to a larger area of the skin. If redness, itching, or discomfort occurs, discontinue use immediately and consult a healthcare professional.^{18, 7} 
• Exercise caution when using essential oils if you have a known allergy to plants or a history of skin sensitivities especially pregnant or nursing women, infants, and young children.¹⁸
• Clary sage, jasmine, and pennyroyal, should be avoided during pregnancy due to their effects on hormone levels and stimulation of uterine contractions.
• Store essential oils in dark glass bottles in a cool, dry place away from direct sunlight and heat to preserve their potency and stability. 
• Keep essential oils out of reach of children and pets to prevent accidental ingestion or exposure.

Experiment with different oils and methods to find what works best for you, and enjoy the soothing benefits of aromatherapy for a restful night's sleep.⁵

Summary 

Essential oils such as lavender, chamomile, and bergamot possess calming and sedative properties that can help reduce stress, anxiety, and tension, facilitating the transition to sleep and promoting relaxation. 

Although they may not be a standalone solution for severe sleep disorders, they can complement existing treatment strategies and provide some relief from common sleep disturbances, including insomnia, sleep apnoea, and restless legs syndrome. 

They are commonly available, which makes them accessible to individuals seeking natural alternatives for sleep support. Various methods of use, including inhalation, topical application, and diffusion allow their easy incorporation into bedtime routines. 

The use of essential oils for sleep empowers individuals to take responsibility and control of various aspects of their sleep hygiene practices and to cultivate self-care rituals that promote relaxation, stress reduction, and overall well-being. However, people must be aware of certain safety considerations regarding their use.

Frequently ask questions

Can essential oils be ingested for sleep?

Some essential oils are considered safe for internal use in small amounts under the guidance of a qualified healthcare professional. However, ingesting essential oils is not recommended for sleep purposes. The recommended method of use of essential oils for sleep is inhalation or topical application.

How often should I use essential oils for sleep?

This may vary depending on individual preferences and needs. While some people find benefit from using essential oils nightly as part of their bedtime routine, others may use them on an as-needed basis during periods of stress or insomnia. It's essential to be mindful of your body and adjust your usage accordingly.

Can essential oils interact with medications I'm taking for sleep?

Consult with a healthcare professional before using essential oils if you are taking medications for sleep or have any other health condition to avoid potential interactions or adverse effects.

How can I determine the quality of essential oils for sleep?

Choose reputable brands that adhere to strict quality control standards and offer third-party testing and certification. Also, avoid oils that contain synthetic additives, fillers, or diluents.

Can essential oils be used safely around pets for sleep?

Some oils can be toxic to pets, especially cats and dogs if ingested or inhaled in high concentrations. Therefore, it is important to use caution when diffusing essential oils around pets and avoid direct contact with their skin or fur. Consult with a veterinarian before using essential oils around pets, especially if they have underlying health conditions.

Can children use essential oils for sleep?

It's essential to use caution and follow proper dilution guidelines. Although it is generally safe, some oils may not be suitable for young children or infants, and it's crucial to consult with a paediatrician before using essential oils for sleep in children, especially those with sensitive skin or respiratory conditions.

Are there any essential oils to avoid for sleep?

Yes, oils such as peppermint, eucalyptus, rosemary and citrus oils may be too stimulating for bedtime use and are best avoided before sleep. It's essential to choose oils that promote relaxation and calmness for sleep support.

Are there any side effects of using essential oils for sleep?

When used properly, essential oils are generally safe and well-tolerated, however, improper use or overuse of essential oils can lead to side effects such as skin irritation, allergic reactions, or respiratory issues. It's essential to follow proper dilution guidelines and use caution, especially for sensitive individuals.

How long do essential oils take to work for sleep?

This depends on individual factors such as sensitivity, dosage, and method of use. Some individuals may experience immediate relaxation and sleepiness after inhaling or applying essential oils, while others may require more consistent use over time to notice significant improvements in sleep quality.