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NCT Number: NCT06778876

Effect of Lavender on Sleep Quality and Insomnia Severity in Patients

Today, psychophysiological insomnia is the most common persistent insomnia. Lavender essential oil is frequently used in the literature as an aromatherapy method to improve sleep quality. Studies have found that lavender improves sleep quality. They also emphasized that more studies are needed in this area. When the relevant literature is reviewed, no studies examining the effects of lavender oil on patients with psychophysiological insomnia were found. In this context, the aim of the study was to evaluate the effect of lavender on sleep quality and insomnia severity in patients with psychophysiological insomnia.

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Key information

Conditions

Insomnia, Psychophysiological Dyssomnias Mental Disorders Nervous System Diseases Pathological Conditions, Signs and Symptoms Signs and Symptoms Sleep Disorders, Intrinsic Sleep Initiation and Maintenance Disorders Sleep Wake Disorders Sleepiness

Age range

18 year–65 year

Sex eligibility

All sexes

Study type

Interventional

Phase

Not applicable

Primary location

University of Health Sciences

Ankara, Keçiören, 06010, Turkey (Türkiye)

About this study

Today, psychophysiological insomnia is the most common persistent insomnia. The patient's inability to sleep occurs as a result of repetitive negative thoughts such as the thought that he will have difficulty sleeping before going to bed and/or past experiences involving the bedroom or the night. More effort to sleep causes more wakefulness and more difficulty falling asleep.

Numerous studies have shown that insomnia seriously affects health and quality of life and can cause various problems including memory problems, depression, irritability, cardiovascular and cerebrovascular diseases, etc. Therefore, looking for effective ways to improve sleep quality is important for individual and social health. Today, drug therapy, psychotherapy, physiotherapy and cognitive-behavioral therapy are widely used treatments for insomnia. Recently, more and more studies have found that aromatherapy is one of the non-drug treatments to improve sleep quality. Lavender essential oil appears in the literature as an aromatherapy method frequently used to improve sleep quality.

Studies have found that lavender improves sleep quality. They also emphasized that more studies are needed in this area. When the relevant literature was examined, no studies were found examining the effects of lavender oil on patients with psychophysiological insomnia. In this context, the aim of the study was to evaluate the effect of lavender on sleep quality and insomnia severity in patients with psychophysiological insomnia.

Who can participate

Healthy volunteers accepted: No

Only the study team can determine whether someone qualifies for participation.

Inclusion criteria

  • Being 18 years of age or older,
  • Being over 65 years old
  • Being diagnosed with psychophysiological insomnia,
  • Knowing Turkish at a level that will allow you to read and understand the survey questions,
  • Accepting to participate in the study

Exclusion criteria

  • Having a serious physical or cognitive disability that would prevent him/her from answering the survey,
  • Being under the age of 18,
  • Not accepting to participate in the study,
  • Being allergic to lavender,
  • Having a chronic additional disease related to the respiratory system,
  • Having a psychiatric or neurological additional disease,
  • Using medication(s) that may affect sleep,
  • Experiencing a physical activity limitation that causes bedriddenness,
  • Having or contracting a disease that will affect the ability to smell.

Treatment and study plan

lavender sachet group

Other

The normal procedure applied in the sleep clinic (keeping a sleep diary, sleep hygiene education) will be followed and participants will be asked to sleep with lavender sachets inside their pillows for two weeks.

Control Group

Other

Participants will follow the normal procedure applied (keeping a sleep diary, sleep hygiene training) in the sleep clinic and no additional intervention will be performed.

Primary outcomes

  1. The Pittsburgh Sleep Quality Index

    Time frame: two weeks

    PSQI is a 19-item scale, assessed by self-report (19 items) and spouse/roommate responses (5 items). The scale includes components such as sleep quality, duration, and disturbance, and the total score ranges from 0 to 21; a score greater than 5 indicates poor sleep quality.

Secondary outcomes

  1. The Insomnia Severity Index

    Time frame: two weeks

    ISS is a 7-item self-report scale. The total score obtained from this scale varies between 0 and 28, and a score of 15 and above indicates clinical insomnia.

  2. The Epworth Sleepiness Scale

    Time frame: two weeks

    ESS is a four-point Likert-type scale consisting of 8 items. The score range of this scale is 0 to 24, and a score of 10 and above indicates excessive daytime sleepiness.

Sponsors and collaborators

Lead sponsor

Saglik Bilimleri Universitesi Gulhane Tip Fakultesi

Other

Registry information

Official study title

Effect of Lavender on Sleep Quality and Insomnia Severity in Patients With Psychophysiological Insomnia

Important dates

Study start
2025
Primary completion
2025
Study completion
2025
First posted
Jan 16, 2025
Registry last updated
Sep 16, 2025

OpenTrials presents study information sourced from ClinicalTrials.gov. The official registry record should be consulted for the latest information.

View the official ClinicalTrials.gov record (opens in a new tab)

This listing is for discovery and informational purposes only. It is not medical advice, does not guarantee that a study is recruiting, and does not determine eligibility. Contact the study team and a qualified healthcare professional when considering participation.

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