Rested & Ready to Learn

March 30, 2026 updated by: Sarah Burkart, University of South Carolina

Prevention Strategies to Enhance Young Children's Sleep Development - Part 2

The goal of this pilot randomized controlled trial is to test the feasibility, acceptability, and preliminary signal of effect of a combined school- and home-based sleep promotion program for young children prior to the kindergarten transition.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

This pilot randomized controlled study will test a combined school- and home-based sleep promotion intervention designed to improve young children's sleep and classroom behavior. Classrooms will be randomized to either the intervention or waitlist control group. Intervention content will be delivered via text message to parents' phones and in the classroom. The primary aim of this study is to assess the feasibility and acceptability of the intervention. The secondary aim is to assess the preliminary signal of effect on children's sleep and classroom behavior. Findings from this study will inform any necessary intervention modifications prior to a fully powered randomized controlled trial.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
98

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Contact

Study Contact

The name and contact information for the person who can answer enrollment questions for a clinical study. Each location where the study is being conducted may also have a specific contact, who may be better able to answer those questions.

Study Contact Backup

Study Locations

  • United States
    • South Carolina
      • Columbia, South Carolina, United States, 29208
        • University of South Carolina

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

  • Child

Accepts Healthy Volunteers

Yes

Description

Inclusion Criteria:

  • Child between the ages of 4-6 years
  • Currently enrolled in a participating school's 4-year-old kindergarten (4K) classroom
  • Parent/guardian willing to complete questionnaires in English
  • Parent/guardian must have access to a mobile phone with texting capability

Exclusion Criteria:

- Parent or child has a medical condition that impairs their ability to participate

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Prevention
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: None (Open Label)

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Rested & Ready to Learn
The Rested & Ready to Learn sleep promotion program includes text messaging to parents, home activities for parents and children to complete together, and brief classroom lessons.
Behavioral: Rested & Ready to Learn
The intervention targets improving young children's sleep by providing parents with sleep education and activities to do at home with their child. Classroom teachers will also deliver a brief lesson aligned with intervention topics to reinforce key messaging in the classroom. The sleep intervention will focus on the benefits of sleep (physical health, social-emotional health, classroom participation/learning), creating and sticking to a bedtime routine, screen use before bed, and developmentally appropriate sleep behavior.
No Intervention: Control
The control group will not receive any intervention. They will be placed on a waitlist and will receive the Rested & Ready to Learn intervention once all assessments are complete.

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Measure Description
Time Frame
Intervention-related feasibility - intervention fidelity
Time Frame: Weekly through study completion (weeks 1-4)
Intervention fidelity, the delivery of the intervention as originally planned, will be assessed via teacher report. Intervention fidelity will be assessed with a study-specific questionnaire to assess if all classroom components were delivered as planned.
Weekly through study completion (weeks 1-4)
Intervention-related feasibility - rate of attendance
Time Frame: Weekly through study completion (weeks 1-4)
Children's attendance at school during intervention sessions will be provided by class records.
Weekly through study completion (weeks 1-4)
Intervention-related feasibility - participant adherence to intervention (home)
Time Frame: Weekly through study completion (weeks 1-4)
Adherence to the home-based component will rely on link usage data to assess parent engagement with the online materials. Investigators will extract information related to the number of parents who click links from weekly material and number of parents who do not open links.
Weekly through study completion (weeks 1-4)
Trial-related feasibility - recruitment capability
Time Frame: Through recruitment period, up to 6 weeks
Recruitment capability will be measured by the proportion of eligible children who enroll at baseline
Through recruitment period, up to 6 weeks
Trial-related feasibility - retention
Time Frame: Weekly through study completion (weeks 1-5)
Retention will be measured by the proportion of enrolled children who remain in the study through the length of the intervention. Reasons for dropout will also be assessed
Weekly through study completion (weeks 1-5)
Intervention-related feasibility - participant adherence to intervention (school)
Time Frame: Weekly through study completion (weeks 1-4)
School-based adherence will be assessed by a teacher-completed survey which will indicate whether or not they implemented the intervention each week
Weekly through study completion (weeks 1-4)
Intervention-related feasibility - data collection completion rates
Time Frame: Weekly through study completion (weeks 1-4)
Data collection completion rates will be calculated to understand the feasibility of data collection protocols
Weekly through study completion (weeks 1-4)
Intervention-related feasibility - data collection feasibility
Time Frame: Post-intervention (week 5-9)
Feasibility of data collection procedures will be assessed with qualitative feedback from parents during semi-structured interviews following the study.
Post-intervention (week 5-9)
Acceptability
Time Frame: Weekly through study completion (weeks 1-4), post-intervention (week 5-9)
Acceptability of the intervention conditions is defined as participants' perception that the intervention is satisfactory and will be assessed with short weekly questionnaires for parents and teachers. Overall acceptability will be assessed with an exit-survey consisting of Likert-scale items and open-ended responses to understand likes/dislikes, content, logistics, and feedback for future iterations. Likert-style questions will have response options ranging from 1-5 with greater scores representing higher acceptability.
Weekly through study completion (weeks 1-4), post-intervention (week 5-9)

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Measure Description
Time Frame
Child working memory
Time Frame: Baseline (week 0) and post-intervention (week 5)
Working memory (i.e., amount of information that can be coordinated in the mind) will be assessed with the Mr. Ant task in which children will recall and identify the location of colorful stickers on Mr. Ant's body on an iPad as part of the freely accessible Early Years Toolbox. For the Mr Ant task, scores are calculated using a point score calculated as: beginning from level 1, one point for each consecutive level in which at least two of the three trials were performed accurately, plus 1/3 of a point for all correct trials thereafter.
Baseline (week 0) and post-intervention (week 5)
Child cognitive flexibility
Time Frame: Baseline (week 0) and post-intervention (week 5)
Cognitive flexibility (i.e., the ability to control and redirect attention) will be assessed with the Card Sorting task in which children will sort cards by color and then shape on an iPad as part of the freely accessible Early Years Toolbox. For the Card Sorting task, investigators tend to review the accuracy of Block 1 (pre-switch) and Block 2 (post-switch). Since a post-switch accuracy score intends to index the extent to which a child could successfully switch from one sorting rule to the next, investigators will swap the two scores if the post-switch accuracy is larger than the pre-switch accuracy. This ensures that final post-switch scores (Block 2 + Block 3) reflects the child's ability to successfully switch between sorting rules.
Baseline (week 0) and post-intervention (week 5)
Child sleep - device-based duration
Time Frame: Baseline (week 0), post-intervention (week 5), follow up (week 17)
Objective nocturnal sleep duration will be assessed using Axivity AX3 accelerometers worn on the non-dominant wrist for 7 days. Raw accelerometry data will be processed with open-source software, GGIR.
Baseline (week 0), post-intervention (week 5), follow up (week 17)
Child sleep - device-based timing
Time Frame: Baseline (week 0), post-intervention (week 5), follow up (week 17)
Objective sleep timing will be assessed using Axivity AX3 accelerometers worn on the non-dominant wrist for 7 days. Raw accelerometry data will be processed with open-source software, GGIR.
Baseline (week 0), post-intervention (week 5), follow up (week 17)
Child sleep - Bedtime Routines Questionnaire
Time Frame: Baseline (week 0), post-intervention (week 5), follow up (week 17)
Parents will complete the Bedtime Routines Questionnaire which contains 31 items on a 5-point Likert scale. This questionnaire results in two subscales - bedtime routine consistency and routine behaviors and environment. Higher scores indicate more consistent bedtime routines.
Baseline (week 0), post-intervention (week 5), follow up (week 17)
Child behavior
Time Frame: Baseline (week 0), post-intervention (week 5), follow up (week 17)
Parents and teachers will complete the Child Self-Regulation and Behavior Questionnaire (CSBQ, ~10 min) which contains 34 items describing children's typical self-regulation and social behaviors in the home (parent version) and classroom (teacher version). Respondents describe what the child's behavior is like on a five-point scale ranging from "Not true" to "Very true." The CSBQ provides the following subscales: self-regulation, sociability, externalizing problems, internalizing problems, and prosocial behavior. The CSBQ is valid and reliable in children ages 3-6 years.
Baseline (week 0), post-intervention (week 5), follow up (week 17)
Child inhibition
Time Frame: Baseline (week 0) and post-intervention (week 5)
nhibition (i.e., the ability to control behavioral impulses) will be assessed with the Go/No-Go task in which children are asked to identify fish and avoid sharks shown on the screen on an iPad as part of the freely accessible Early Years Toolbox. An impulse control score is calculated (% Go Accuracy x % No-Go Accuracy), which reflects the child's ability to withhold their response in the context of the strength of that typical (pre-potent) response.
Baseline (week 0) and post-intervention (week 5)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
University of South Carolina

Collaborators

Collaborators

An organization other than the sponsor that provides support for a clinical study. This support may include activities related to funding, design, implementation, data analysis, or reporting.
National Institute of General Medical Sciences (NIGMS)

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 12, 2025

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
January 21, 2026

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 30, 2026

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
March 11, 2025

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 11, 2025

First Posted (Actual)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
March 18, 2025

Study Record Updates

Last Update Posted (Actual)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
April 1, 2026

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
March 30, 2026

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
January 1, 2026

More Information

Terms related to this study

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • Pro00138759
  • 5P20GM130420 (U.S. NIH Grant/Contract)

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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