ClinicalTrials.gg
TerminatedNCT06602960Updated Apr 18, 2025

Nextsense Brain-sensing Buds Study

An interventional study of Accurate Sleep Data Feedback and Inflated Sleep Data Feedback in Sleep, Sleep Quality and Sleepiness, Daytime, sponsored by NextSense, Inc.. Terminated at 1 site in United States. Open to participants aged 25 Years to 65 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2025-04-18.

Sponsored by NextSense, Inc. · Not applicable, Interventional, and Health services research

Why this study was terminated
The study was stopped due to technical difficulties in verifying participants' receipt of the intervention-specifically, whether they opened the intervention message.We completed a preliminary analysis of data from 40 participants.

Help build ClinicalTrials.gg — short surveys, remote interviews or testing, in your language. Take part →

Phase
Not applicable
Study type
Interventional
Enrollment
40
Allocation
Randomized
Ages
25 Years to 65 Years
Sex
All
01

Where this study stands

Counted across the records on this site · 2026-11-15

Among 903 studies in Sleep Initiation and Maintenance Disorders with a site in United States — 146 open to participants now, 183 under way, 5 of them phase 3. Sleep Initiation and Maintenance Disorders · United States.

Enrollment
534th of 855
40 · median 60
Started
2024
with 60 others
No phase
577 of 903
107 open now
Registered
772nd of 903
by date

Among the 903 studies in Sleep Initiation and Maintenance Disorders with a site in United States, this one is the 534th largest by enrollment of the 855 interventional ones that give a count, is one of 61 that started in 2024, is one of 577 with no phase, and was the 772nd registered.

Sleep Initiation and Maintenance Disorders

2,728 studies on the registry are indexed under Sleep Initiation and Maintenance Disorders; 730 are open to participants now.

Browse Sleep Initiation and Maintenance Disorders studies →

Open to participants now

146 of the 903 studies in Sleep Initiation and Maintenance Disorders with a site in United States are open now. Recruiting first, the newest first:

141 more — sign in →

All 146 open studies →

A study can be open while its sites in United States have not opened yet or have stopped. Only those recruiting at a site in United States →

Who these studies take

Of the 389 Sleep Initiation and Maintenance Disorders studies recruiting now, 152 (39%) set no upper age limit and 207 (53%) stop at 75 or younger; 59 take children under 18; 108 take healthy volunteers.

This study: 25 Years to 65 Years · all sexes · healthy volunteers too.

The full table on the hub →

This tab as a report to print or save as PDF → With an account.

Was this useful?
Watch this landscapeDownload CSVNarrow it in search →With an account: a weekly mail of what changed among 903 studies in Sleep Initiation and Maintenance Disorders with a site in United States, or all of them as a file.
02

Study summary

The purpose of this clinical trial is to explore how the presentation of sleep data impacts sleep quality, sleep-related behaviors (such as sleepiness), and sleep-related anxiety and stress. The study aims to answer the following key questions:

  1. Does receiving sleep-related feedback from a wearable sleep tracker affect an individual\'s mindset about sleep?
  2. How does the mindset about sleep influence sleep quality, sleepiness, and stress/anxiety levels related to sleep?
  3. Does the feedback on sleep data moderate the relationship between one\'s mindset about sleep and their sleep quality?

Participants will:

  1. Be randomly assigned to receive different types of feedback about their sleep data to determine if the way sleep data is presented influences self-reported sleep quality, sleepiness, and sleep-related stress.
  2. During the baseline period (Weeks 1-2), complete daily and weekly surveys assessing their sleep habits, beliefs about sleep, anxiety, stress, and mindset regarding sleep.
  3. For Weeks 3-4, wear a Fitbit and Brain-Sensing earbuds, receiving daily feedback on their sleep.
  4. At the end of the study, provide feedback on their experience using the devices. Participants may choose to return the devices or keep them after the study concludes.
Read the detailed description

With the growing prevalence of sleep-tracking wearables available to consumers, understanding the psychological and behavioral impacts they have on users is important. Recent advancements in wearable technology allow for monitoring various sleep parameters, providing users with extensive data on their sleep patterns. The study aims to examine how the presentation of sleep data influences user sleep quality, sleep-related behaviors, including sleepiness, and sleep-related anxiety and stress. It will evaluate how the presentation of sleep data affects individuals\' perceptions of sleep and related health issues, including daytime sleepiness and perceived sleep quality. Participants will receive sleep data feedback based on new methods assessed using Fitbit, brain-sensing earbuds, and other factors that might impact sleep. Additionally, the study seeks to offer valuable insights into sleep research, behavioral psychology, and wearable technology.

03

Conditions studied

  • Sleep
  • Sleep Quality
  • Sleepiness, Daytime
  • Technology

Keywords

  • sleep
  • mindset about sleep
  • brain-sensing buds
04

Who can participate

Ages eligible
25 Years to 65 Years
Sexes eligible
All
Accepts healthy volunteers
Yes

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • All participants have the capacity to understand the for study participation and ability for subject to comply with the requirements of the study
  • Experiencing mild to moderate sleep disturbances, but without sleep disorder diagnosis
  • Naïve to sleep tracker use
  • Age 25-65

Exclusion criteria

Exclusion Criteria:

  • Participants who have used any type of sleep tracker, such as Oura, Fitbit, Google Fit, Garmin Connect, or Apple Watch Sleep
  • Health conditions (i.e., cancer, cognitive impairment, panic disorder, post-traumatic stress disorder, sleep apnea, insomnia, restless leg syndrome, Parkinson's disease)
  • Use of Modafinil (Provigil), Methylphenidate (Ritalin), Sodium oxybate (Xyrem), Melatonin, Benadryl, Wakix, Sunosi or prescription medications for ADHD Enrollment in other sleep studies
  • Women who are pregnant or who are currently nursing/breastfeeding will be excluded from this study.
Terms in these criteria, in plain language(1)

Underlined terms in the criteria open these too. Explained by clinicaltrials.gg, not part of the registry record. The study team decides who can take part.

Informed consent

Before you join, the study team explains what taking part involves — its purpose, what happens, the risks and possible benefits — and answers your questions, so you can decide freely. Consent is usually recorded on a form (the informed consent form, ICF) signed by you or, where the law allows, by someone legally authorised to decide for you.

You can keep asking questions during the study, you are told of new information that matters, and you can choose to leave at any time.

05

Study design

Phase
Not applicable
Primary purpose
Health services research
Allocation
Randomized
Intervention model
Parallel assignment
Masking
Single (Participant)
Enrollment
40 participants (actual)

Study arms

  • Active comparator
    Control Group

    All arms receive identical instructions during the onboarding session, which includes information about the study's purpose and the use of Fitbit and NextSense brain-sensing earbuds. Participants are provided with a Fitbit and NextSense brain-sensing earbuds upon enrollment in the study and are instructed to wear them during weeks 3-4. Throughout the 4 weeks, participants complete short daily surveys and longer weekly surveys. At the end of the study, participants complete an "offboarding" survey. In this arm, participants will receive accurate feedback about their sleep data.

    Behavioral: Accurate Sleep Data Feedback

  • Experimental
    Intervention Group 1

    All arms receive identical instructions during the onboarding session, which includes information about the study's purpose and the use of Fitbit and NextSense brain-sensing earbuds. Participants are provided with a Fitbit and NextSense brain-sensing earbuds upon enrollment in the study and are instructed to wear them during weeks 3-4. Throughout the 4 weeks, participants complete short daily surveys and longer weekly surveys. At the end of the study, participants complete an "offboarding" survey. In this arm, participants will receive inflated feedback about their sleep data, suggesting better sleep quality than detected by Fitbit (actual sleep hours +10%).

    Behavioral: Inflated Sleep Data Feedback

  • Experimental
    Intervention Group 2

    All arms receive identical instructions during the onboarding session, which includes information about the study's purpose and the use of Fitbit and NextSense brain-sensing earbuds. Participants are provided with a Fitbit and NextSense brain-sensing earbuds upon enrollment in the study and are instructed to wear them during weeks 3-4. Throughout the 4 weeks, participants complete short daily surveys and longer weekly surveys. At the end of the study, participants complete an "offboarding" survey. In this arm, participants will receive deflated feedback about their sleep data, suggesting poorer sleep quality than detected by Fitbit (actual sleep hours -10%).

    Behavioral: Deflated Sleep Data Feedback

  • Experimental
    Intervention Group 3

    All arms receive identical instructions during the onboarding session, which includes information about the study's purpose and the use of Fitbit and NextSense brain-sensing earbuds. Participants are provided with a Fitbit and NextSense brain-sensing earbuds upon enrollment in the study and are instructed to wear them during weeks 3-4. Throughout the 4 weeks, participants complete short daily surveys and longer weekly surveys. At the end of the study, participants complete an "offboarding" survey. In this arm, participants will receive accurate feedback about their sleep data along with sleep-related educational information.

    Behavioral: Accurate Sleep Data Feedback + Sleep-related Educational Information

Interventions

  • BehavioralAccurate Sleep Data Feedback

    Participants will receive accurate feedback about their sleep data.

  • BehavioralInflated Sleep Data Feedback

    Participants will receive inflated feedback about their sleep data, suggesting better sleep quality than detected by Fitbit (actual sleep hours +10%).

  • BehavioralDeflated Sleep Data Feedback

    Participants will receive deflated feedback about their sleep data, suggesting poorer sleep quality than detected by Fitbit (actual sleep hours -10%).

  • BehavioralAccurate Sleep Data Feedback + Sleep-related Educational Information

    Participants will receive accurate feedback about their sleep data along with sleep-related educational information.

06

What researchers measure

Primary outcomes

  1. Participant-reported Sleep Quality

    Measured via self-report using the 15-item Groningen Sleep Quality Scale, with scores ranging from 1 to 14. A score of 14 indicates poor sleep quality the previous night.

    Time frame: 4 weeks (Week 1 - Week 4): measured at baseline, in daily surveys.

  2. Sleep data - Total hours of sleep

    Total hours of sleep data tracked by Fitbit

    Time frame: 2 weeks (Week 3 - Week 4): measured daily, sleep data tracked by Fitbit will be transmitted to the Alethios platform automatically once a day.

  3. Modified Karolinska Sleepiness Scale

    Sleepiness, measured via self-report using the 1-item modified Karolinska Sleepiness Scale, ranges from 1 to 10, with 1 indicating extreme alertness, 3 alert, 5 neither alert nor sleepy, 7 sleepy but no difficulty remaining awake, 9 extremely sleepy, fighting sleep, and 10 extremely sleepy, falling asleep all the time.

    Time frame: 4 weeks (Week 1 - Week 4): measured at baseline, in daily surveys.

  4. Fitbit tracked Sleep Quality

    Fitbit sleep score, ranging from 0 to 100, indicates sleep quality: 90-100 is excellent, 80-89 good, 60-79 fair, and 0-59 poor, based on duration, disturbances, and restorative sleep.

    Time frame: 2 weeks (Week 3 - Week 4): measured daily, sleep data tracked by Fitbit will be transmitted to the Alethios platform automatically once a day.

Secondary outcomes

  1. Anxiety, Stress, and Mindset related to Sleep

    Measured via self-report using the 7-item survey.

    Time frame: 4 weeks (Week 1 - Week 4): measured at baseline, in weekly surveys.

  2. Dysfunctional Beliefs and Attitudes about Sleep 16-item

    Sleep-related mindset, measured via self-report using the 16-item Dysfunctional Beliefs and Attitudes about Sleep, involves calculating the average of the scores from all 16 items. Higher average scores indicate a stronger endorsement of sleep-disruptive beliefs, which are considered maladaptive.

    Time frame: 4 weeks (Week 1 - Week 4): measured at baseline, in weekly surveys.

  3. Modified Insomnia Severity Index

    Severity of Sleep Problems, measured via self-report using the 5-item Insomnia Severity Index, modified to replace Insomnia with Sleep.

    Time frame: Week 2 and Week 4: measured twice.

  4. Satisfaction with sleep

    Measured via self-report using a single item, with scores ranging from 1 to 5, where 1 indicates very satisfied and 5 indicates very dissatisfied.

    Time frame: Week 2 and Week 4: measured twice.

  5. Sleep Problems Interference with Daily Functioning

    Measured via self-report using a single item, with scores ranging from 1 to 5, where 1 indicates not at all interfering and 5 indicates very much interfering.

    Time frame: Week 2 and Week 4: measured twice.

  6. Pre-Sleep Arousal Scale

    Pre-sleep arousal, measured via self-report using the 16-item Pre-Sleep Arousal Scale, with items rated on a 5-point Likert scale from 1 (not at all) to 5 (extremely). The sum of scores from the first 8 items reflects somatic pre-sleep arousal, and the sum of scores from the last 8 items reflects cognitive pre-sleep arousal. Clinically relevant cut-off scores will be used: ≥14 for somatic pre-sleep arousal and ≥20 for cognitive pre-sleep arousal.

    Time frame: 4 weeks (Week 1 - Week 4): measured at baseline, in weekly surveys.

Other outcomes

  1. Virtual Research Participation

    Measured via self-report using the 10-item questionnaire.

    Time frame: Once at the end of the study, through study completion, which averages approximately 1 year.

07

Study locations

1 site
  • Alethios (Virtual Study Platform)
    San Francisco, California 94109, United States
08

References and documents

Individual participant data

Plan to share: No

No publications or documents are linked to this record.

09

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reached

Ran from Oct 2024 to primary completion in Feb 2025, 3 months.

How these figures are worked out, and which studies are left out of them.

Registered
Sep 16, 2024
First posted
Sep 19, 2024
StartActual
Oct 7, 2024
Primary completionActual
Feb 5, 2025
CompletionActual
Apr 15, 2025
Last update
Apr 18, 2025
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Apr 18, 2025, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
10

Registry details

Key details

Study ID
NCT06602960
Lead sponsor
NextSense, Inc.
Responsible party
Sponsor
First posted
Sep 19, 2024
Start date
Oct 7, 2024
Primary completion
Feb 5, 2025
Completion
Apr 15, 2025
Last update
Apr 18, 2025

Study contacts

Kyung Mi Kim, PhD
principal investigator · MandK Consulting Partners
Michele D Nelson, PhD
principal investigator · MandK Consulting Partners

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is terminated, as verified in Apr 2025. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion