NCT07638605

Brief Summary

Sleep problems may affect individuals' daily functioning, emotional well-being, cognitive performance, and quality of life. Non-pharmacological approaches, including sleep hygiene education, sensory-based strategies, and behavioral relaxation techniques, may help individuals develop healthier sleep routines. However, studies directly comparing sensory-based and behavioral approaches are limited. The aim of this randomized controlled study is to compare the effects of sensory-based and behavioral sleep interventions in adults experiencing poor sleep quality. Participants are randomly assigned to one of three groups: a sleep hygiene education group, a sensory-based intervention group, or a behavioral intervention group. All participants receive a standardized six-week sleep hygiene education program. In addition, the sensory-based intervention group uses aromatherapy and pink noise, while the behavioral intervention group practices progressive muscle relaxation and diaphragmatic breathing exercises. Participants are assessed before and after the six-week intervention period. The study examines changes in sleep quality and sleep-related behaviors, as well as anxiety, quality of life, activity-role balance, sensory processing characteristics, autonomic nervous system activity, and sleep parameters. The study is expected to provide information about the potential contribution of sensory-based and behavioral strategies to the management of sleep problems.

Trial Health

77
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
54

participants targeted

Target at P25-P50 for not_applicable

Timeline
1mo left

Started Dec 2025

Shorter than P25 for not_applicable

Geographic Reach
1 country

1 active site

Status
recruiting

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Progress92%
Dec 2025Jul 2026

Study Start

First participant enrolled

December 15, 2025

Completed
6 months until next milestone

First Submitted

Initial submission to the registry

June 5, 2026

Completed
5 days until next milestone

First Posted

Study publicly available on registry

June 10, 2026

Completed
21 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2026

Expected
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

July 1, 2026

Last Updated

June 10, 2026

Status Verified

June 1, 2026

Enrollment Period

7 months

First QC Date

June 5, 2026

Last Update Submit

June 5, 2026

Conditions

Keywords

sleep disordersensory-basedbehavioral

Outcome Measures

Primary Outcomes (2)

  • Change in Pittsburgh Sleep Quality Index Global Score

    Sleep quality is assessed using the Pittsburgh Sleep Quality Index. The scale evaluates subjective sleep quality during the previous month and provides a global score ranging from 0 to 21. Higher scores indicate poorer sleep quality. The outcome is the change in the global score from baseline to the post-intervention assessment.

    Baseline and immediately after completion of the 6-week intervention

  • Change in Sleep Hygiene Index Total Score

    Sleep hygiene is assessed using the Sleep Hygiene Index, which evaluates the frequency of behaviors and environmental practices that may negatively affect sleep. Higher total scores indicate poorer sleep hygiene. The outcome is the change in the total score from baseline to the post-intervention assessment.

    Baseline and immediately after completion of the 6-week intervention

Secondary Outcomes (5)

  • Change in Beck Anxiety Inventory Total Score

    Baseline and immediately after completion of the 6-week intervention

  • Change in WHOQOL-BREF Domain Scores

    Baseline and immediately after completion of the 6-week intervention

  • Change in Occupational Balance Questionnaire-11 Total Score

    Baseline and immediately after completion of the 6-week intervention

  • Change in Adolescent/Adult Sensory Profile Quadrant Scores

    Baseline and immediately after completion of the 6-week intervention

  • Change in Resting Heart Rate Variability Parameters

    Baseline and immediately after completion of the 6-week intervention

Study Arms (3)

Sleep Hygiene Education

ACTIVE COMPARATOR

Participants in this group receive a standardized six-week sleep hygiene education program. The program includes recommendations on maintaining regular sleep and wake times, limiting caffeine, nicotine, and alcohol before bedtime, reducing stimulating activities and screen exposure, and arranging the sleep environment in terms of light, noise, and room temperature. Participants receive weekly follow-up telephone calls to support adherence to the program.

Behavioral: Sleep Hygiene Education

Sleep Hygiene Education Plus Sensory-Based Intervention

EXPERIMENTAL

Participants in this group receive the standardized six-week sleep hygiene education program together with a sensory-based intervention. The sensory intervention includes inhalation of lavender and orange essential oils before bedtime and exposure to pink noise during the transition to sleep. Participants receive standardized instructions for home-based application, and adherence is monitored through weekly follow-up telephone calls.

Behavioral: Sleep Hygiene EducationBehavioral: Sensory-Based Sleep Intervention

Sleep Hygiene Education Plus Behavioral Intervention

EXPERIMENTAL

Participants in this group receive the standardized six-week sleep hygiene education program together with a behavioral intervention. The behavioral intervention includes progressive muscle relaxation and diaphragmatic breathing exercises performed before bedtime. Participants receive written instructions and audio recordings to support standardized home-based practice, and adherence is monitored through weekly follow-up telephone calls.

Behavioral: Sleep Hygiene EducationBehavioral: Behavioral Relaxation Intervention

Interventions

Participants receive a standardized six-week sleep hygiene education program. The program covers sleep physiology and the use of a sleep diary, the principles and importance of sleep hygiene, behavioral and cognitive strategies that may support sleep, characteristics of an appropriate sleep environment, evaluation of current sleep habits, factors affecting sleep quality, and reinforcement of acquired sleep-related behaviors. The educational content is delivered remotely, and adherence is supported through weekly telephone follow-up.

Sleep Hygiene EducationSleep Hygiene Education Plus Behavioral InterventionSleep Hygiene Education Plus Sensory-Based Intervention

Participants receive a home-based sensory intervention in addition to sleep hygiene education. The intervention includes inhalation of lavender and orange essential oils before bedtime and exposure to pink noise during the transition to sleep. Participants are instructed to apply a few drops of the essential oils to cotton or gauze placed at an appropriate distance for inhalation, or to disperse the oils into the room using a diffuser. The sensory strategies are introduced by the researcher and are applied regularly in the home environment throughout the six-week intervention period. Adherence is monitored through weekly telephone follow-up.

Sleep Hygiene Education Plus Sensory-Based Intervention

Participants receive a home-based behavioral relaxation intervention in addition to sleep hygiene education. The intervention consists of progressive muscle relaxation exercises and diaphragmatic breathing exercises performed before bedtime. Participants are provided with an audio recording and written instructions to support standardized practice. Progressive muscle relaxation involves the systematic relaxation of different muscle groups, while diaphragmatic breathing is used to support physiological relaxation. The exercises are practiced regularly throughout the six-week intervention period, and adherence is monitored through weekly telephone follow-up.

Sleep Hygiene Education Plus Behavioral Intervention

Eligibility Criteria

Age20 Years - 55 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64)

You may qualify if:

  • Aged 20 to 55 years
  • Pittsburgh Sleep Quality Index global score of 5 or higher
  • Able to use a smartphone
  • Able to understand and speak Turkish
  • Willing to participate voluntarily and provide informed consent

You may not qualify if:

  • History of substance dependence
  • Presence of a chronic physical illness or a diagnosed psychiatric disorder
  • Regular medication use, particularly sleep-regulating medications, antidepressants, or similar medications that may affect sleep
  • Diagnosis of a sleep disorder, such as insomnia or sleep apnea
  • Mini-Mental State Examination score below 24
  • Regular meditation or similar mind-body practice for more than 15 minutes per day
  • Body mass index greater than 34.9 kg/m²
  • Previous participation in a sleep hygiene education program

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Atlas University

Istanbul, Istanbul, 34672, Turkey (Türkiye)

RECRUITING

MeSH Terms

Conditions

Sleep Wake DisordersBehavior

Condition Hierarchy (Ancestors)

Nervous System DiseasesNeurologic ManifestationsSigns and SymptomsPathological Conditions, Signs and SymptomsMental Disorders

Central Study Contacts

Zeynep Çorakcı Yazıcıoğlu

CONTACT

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
NONE
Purpose
SUPPORTIVE CARE
Intervention Model
PARALLEL
Model Details: Participants are randomly assigned in parallel to one of three study groups: sleep hygiene education alone, sleep hygiene education combined with a sensory-based intervention, or sleep hygiene education combined with a behavioral intervention. Each participant remains in the assigned group throughout the six-week intervention period, and outcomes are assessed before and after the intervention.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Assistant Professor

Study Record Dates

First Submitted

June 5, 2026

First Posted

June 10, 2026

Study Start

December 15, 2025

Primary Completion (Estimated)

July 1, 2026

Study Completion (Estimated)

July 1, 2026

Last Updated

June 10, 2026

Record last verified: 2026-06

Data Sharing

IPD Sharing
Will not share

Individual participant data will not be made publicly available because the informed consent obtained from participants does not include permission for public or unrestricted sharing of individual-level data. In addition, the relatively small sample size and the detailed demographic, clinical, and physiological data collected may increase the risk of participant re-identification. De-identified aggregate study results will be reported in the thesis, scientific publications, and presentations.

Locations