Better Sleep with an Opened Window

A study reveals that you can obtain better sleep with an open window, and also perform better at cognitive functions the next morning.

Better Sleep with an Opened Window (research study concludes)

Better sleep with an opened window? A team of Danish researchers concludes that the air quality in your bedroom while you sleep could be linked to better work performance. The researchers conducted a field intervention of 40 bedrooms in Denmark over a two-week period and monitored participants’ sleep quality using a wearable device. Additionally, participants logged their daily activities and sleep electronically. Every morning, they took a three-minute cognitive-abilities test.

The results revealed that participants who had their windows open reported experiencing deep sleep. 87% of them expressing this compared to 70% of those who slept with closed windows. Furthermore, participants who slept with an open window performed better on the cognitive test the following morning.

This suggests that individuals should ventilate their bedrooms with clean outdoor air or supply them with air that is equivalent to clean outdoor air during the night.

Highlights of the Research Study:

  • Researchers conducted a field intervention study in 40 bedrooms.
  • Perceived air quality improved and the concentration of CO2, VOCs, and PM10 decreased when a window was open.
  • Objectively measured and subjectively rated sleep quality improved after sleeping with an open window.
  • Opening a bedroom door reduced CO2 concentration but did not provide any of the above benefits.

Contact us today and let us help you to improve your employee’s health and reduce work-related injuries.

Related article:  Supportive Supervisors Improve Sleep
  • Drawing from extensive data obtained from the Work Environment and Health in Denmark study, Finnish Public Sector Study, and Swedish Longitudinal Occupational Survey of Health, the researchers analyzed responses from nearly 115,000 participants over a period of up to six years.
  • The participants were specifically questioned about their workplace environment, focusing on factors such as leaders’ listening skills, perceived fairness, co-worker support, and collaboration. The researchers discovered that those who reported favorable psychological and social support at work experienced a notable decrease in the risk of sleep disturbances.
More Tools & Resources from Peak Ergonomics
Healthy Employees are the Bottom Line!

Work Related Injuries

Reduction of Work Related Injuries by 96%


Photo collage of "before & after" injury hazards solved by Peak Ergonomics Early Intervention service resulting in a reduction of work-related injuries

Kelly and Paul with Peak Ergonomics wearing safety gear


The entire Peak Ergo Family

Our Early Beginnings

Since 2006, we managed over 20,000 early intervention cases with a reduction of work-related injuries by 96%. As a result, we saved our clients over 170 million dollars. In addition, we have kept 1.7 billion dollars from being snatched away from our clients’ sales due to workplace injuries and illnesses. We are an injury prevention business. Our clients experience a significant reduction in reported work-related injuries. One of our clients reported going six years with only seven injuries! Healthy employees are the bottom line!

The reason we are so successful is because of our consultants. Our consultants go to great lengths to find high-quality, relational individuals with a high skill set. As a result, we find the best people to join our team. Honest, diligent, fair-minded, and hard-working are all personal attributes in each of our consultants. If you take the time to read our consultants’ bios, you see stories of some remarkable people. Not only are they experts at reducing workplace injuries, but they are truly good people and devote their life to the betterment of society.

Secret to Our Success

Our consultants love their family, friends, and animals and they live a life of love and service. They are highly relational people, bringing everyone inside and leaving no one out.  When our team works with a client, we build relationships and genuinely try to make a difference in the life of each person we meet.

The core philosophy of Peak Ergonomics is to help others. When we meet with someone, we do our best to help the entire person. What we do is help your employee achieve their peak health potential. Not only do we look at the occupational risk factors, but we also look at their risk factors. Sleeping posture, hobbies, caregiving, uncontrolled medical conditions, and a long list of individual items may also need to be corrected to resolve their problem. Our professional ergonomics team listen to the person and help them to the best of our ability, and we give generously of our knowledge. We have created a video library of our preventive exercises and share them on our website with the entire world.

If you are interested in reducing work-related injuries and illnesses, please reach out to us.  You can email us at [email protected] or call 573.239.3666. Contact us now for your Free Ergonomics Consultation and Quote.

Paul Krewson
Founder & CEO


Keeping Your Employees Healthy & Safe

Columbia: MEM 101 N Keene St. Columbia, MO Thursday, April 4th, 2013

Chesterfield: MEM 663 Trade Ctr Blvd. Chesterfield, MO Thursday, April 11th, 2013 8:00am to 3:00pm

How to Create an Effective Employee Wellness Program

Steve Potje, RN, CCP, HPC, BS/BA Executive Director National Association of Disease Management & Wellness Professionals

The Prevention & Early Intervention of Common Musculoskeletal Disorders

Paul Krewson, OTR/L, CEAS III Occupational Therapist & Ergonomist Peak Ergonomics, Inc.

Safety Inspections: Find Hazards Before They Find You!

Mark Woodward Loss Prevention Trainer Missouri Employer’s Mutual

The Use of Ergonomic Evaluation in Medical Causation

Vic Zuccarello, OTR/L, C.E.A.S. II, ABDA Owner & Vice President Bio-Ergonomics, Inc.

Full Spectrum Ergonomics: From Prevention to Work Causation Determination

Past Seminar

Columbia: Tuesday, October 23rd, 2018 @ Stoney Creek Hotel & Conference
Cape Girardeau: Tuesday, October 30th @ Drury Plaza Hotel & Conference


8:00am – 8:30am: Registration & Continental Breakfast

8:30am – 10:00am:

“Prevention: The Ideal Application of Ergonomics” by Mark Woodward

10:00am – 10:15am: Break

10:15am – 11:45am:

“Early Intervention: The Realistic Application of Ergonomics” by Paul Krewson

11:45am – 12:15pm: Lunch provided

12:15pm – 1:15pm:

“Work Causation Determination: The Unfortunate Application of Ergonomics” by Tyler Brown Part 1

1:15pm – 1:30pm: Break

1:30pm – 3:00pm:

“Work Causation Determination: The Unfortunate Application of Ergonomics” by Tyler Brown Part 2

Tuition: $149

Early Bird: $129 if you register at least 2 weeks in advance.

Two or more from same business: $88 each person.

Pricing includes breakfast, lunch and 5.5 hours of Continuing Education