Related Experiment Video
Updated: Mar 8, 2026

08:36
Collecting Sleep, Circadian, Fatigue, and Performance Data in Complex Operational Environments
Published on: August 8, 2019
12.9K
Age differences in workplace intervention effects on employees' nighttime and daytime sleep
Soomi Lee1, David M Almeida2, Lisa Berkman3
1Department of Biobehavioral Health, Pennsylvania State University, University Park, PA.
Sleep Health
|January 21, 2017
Summary
Workplace flexibility and support interventions improved employee sleep duration. Older employees benefited most, experiencing reduced daytime naps and improved sleep consistency.
Area of Science:
- Occupational health
- Sleep science
- Work-life balance research
Background:
- Employee sleep health is crucial for well-being and productivity.
- Workplace factors significantly influence sleep patterns.
- Interventions promoting flexibility and support may mitigate sleep issues.
Purpose of the Study:
- To evaluate the impact of a workplace flexibility and support intervention on employee sleep.
- To determine if intervention effects on sleep differ based on employee age.
Main Methods:
- A cluster-randomized controlled trial was conducted in an information technology firm.
- 396 US employees participated, with data collected at baseline and 12-month follow-up.
- Wrist actigraphy measured nighttime sleep duration, wake after sleep onset (WASO), and nap duration.
Main Results:
- Intervention participants showed a 9-minute increase in daily nighttime sleep duration compared to controls.
- Significant age interactions were observed for daytime nap duration and WASO variability.
- Older employees in the intervention group reduced nap duration and decreased WASO variability.
Conclusions:
- Workplace flexibility and support interventions effectively improve employee nighttime sleep duration.
- These interventions offer specific benefits for older employees, reducing daytime napping and enhancing sleep stability.
Keywords:
Day-to-day variability in sleepNap durationNighttime sleep durationWake after sleep onsetWorkplace interventionMore Related Videos
Related Concept Videos
Chronopharmacokinetics: Circadian Rhythms and Influence on Drug Response
431
Circadian rhythms are cyclic changes that are crucial in plasma drug concentrations. Various standard circadian parameters, including core body temperature, heart rate, and other cardiovascular factors, directly impact disease states and the therapeutic response to drug therapy.
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
The time of drug administration is an important factor to consider, as it can influence the toxic dose of a drug. For example, a study conducted by Prins et al. in 1997 examined the effects of the timing of...
431
Insufficient Sleep and Sleep Deprivation
1.1K
Insufficient sleep refers to not getting the recommended amount of sleep for optimal functioning, even if it's just slightly less than needed. Sleep insufficiency may occur due to lifestyle choices, such as staying up late for social events or work, resulting in routinely getting less sleep than required. For example, consistently sleeping 6 hours when the body needs 7-9 hours can lead to cumulative effects on health and well-being.
Sleep deprivation is a more severe form of sleep loss...
Sleep deprivation is a more severe form of sleep loss...
1.1K
Substance Use Disorders Affecting Sleep
502
Substance use disorders involve a pattern of using drugs more extensively than intended and continuing use despite harmful consequences. This includes legal substances like alcohol and nicotine, as well as illegal drugs. These disorders often involve both physical and psychological dependence, reflecting compulsive use of substances that significantly alter thoughts, feelings, and behaviors, contributing to a major public health issue.
Understanding the concepts of physical dependence,...
Understanding the concepts of physical dependence,...
502
Blind Procedures
13.8K
Ideally, the people who observe and record the children’s behavior are unaware of who was assigned to the experimental or control group, in order to control for experimenter bias. Experimenter bias refers to the possibility that a researcher’s expectations might skew the results of the study. Remember, conducting an experiment requires a lot of planning, and the people involved in the research project have a vested interest in supporting their hypotheses. If the observers knew which...
13.8K
Cause and Effect
12.6K
While variables are sometimes correlated because one does cause the other, it could also be that some other factor, a confounding variable, is actually causing the systematic movement in our variables of interest. For instance, as sales in ice cream increase, so does the overall rate of crime. Is it possible that indulging in your favorite flavor of ice cream could send you on a crime spree? Or, after committing crime do you think you might decide to treat yourself to a cone?
12.6K
Management of Insomnia
747
The sleep cycle, an integral part of human health, consists of several stages with distinct characteristics and functions. It begins with a transition from wakefulness to sleep, known as the light sleep phase, followed by the restorative deep sleep phase, essential for physical recovery and growth. The cycle concludes with the Rapid Eye Movement (REM) phase, characterized by high brain activity and vivid dreaming. Insomnia, a prevalent sleep disorder, involves difficulty falling asleep, staying...
747

