Eric Suni Staff Writer
Eric Suni
Staff Writer
Eric Suni has over a decade of experience as a science writer and was previously an information specialist for the National Cancer Institute.
Want to read more about all our experts in the field?
Heather Wright Pathologist
Heather Wright
Pathologist
Dr. Wright, M.D., is an Anatomic and Clinical Pathologist with a focus on hematopathology. She has a decade of experience in the study of disease.
Want to read more about all our experts in the field?
Fact-Checked
Sleep Foundation
Fact-Checking: Our Process
The Sleep Foundation editorial team is dedicated to providing content that meets the highest standards for accuracy and objectivity. Our editors and medical experts rigorously evaluate every article and guide to ensure the information is factual, up-to-date, and free of bias.
The Sleep Foundation fact-checking guidelines are as follows:
- We only cite reputable sources when researching our guides and articles. These include peer-reviewed journals, government reports, academic and medical associations, and interviews with credentialed medical experts and practitioners.
- All scientific data and information must be backed up by at least one reputable source. Each guide and article includes a comprehensive bibliography with full citations and links to the original sources.
- Some guides and articles feature links to other relevant Sleep Foundation pages. These internal links are intended to improve ease of navigation across the site, and are never used as original sources for scientific data or information.
- A member of our medical expert team provides a final review of the content and sources cited for every guide, article, and product review concerning medical- and health-related topics. Inaccurate or unverifiable information will be removed prior to publication.
- Plagiarism is never tolerated. Writers and editors caught stealing content or improperly citing sources are immediately terminated, and we will work to rectify the situation with the original publisher(s)
- Although Sleep Foundation maintains affiliate partnerships with brands and e-commerce portals, these relationships never have any bearing on our product reviews or recommendations. Read our full Advertising Disclosure for more information.
Up-to-Date
Table of Contents
Table of Contents
- What Is Mold?
- Mold and Your Health
- Mold and Your Sleep
- The Moldy Bedroom
- Controlling Mold in the Bedroom
While kitchens and bathrooms are known for harboring mold, it often surprises people to learn that mold can invade their bedroom, too. And if you’re getting at least seven hours of sleep Trusted Source National Library of Medicine, Biotech InformationThe National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.View Source , a moldy bedroom becomes a significant source of mold exposure.
Mold can cause numerous health problems, and evidence suggests it can disrupt your sleep. As a result, it’s important to learn about the causes of mold growth, the signs of mold, and the steps you can take to control mold in the bedroom.
What Is Mold?
Molds are naturally occurring fungi found indoors and outdoors. There are thousands of mold strains, which all require moisture for growth.
Mold spreads to new environments by releasing microscopic spores that travel through the air. Trace amounts of mold are always circulating in the air and environment Trusted Source Centers for Disease Control and Prevention (CDC)As the nation’s health protection agency, CDC saves lives and protects people from health threats.View Source , but spores begin to grow when they land somewhere with a suitable amount of moisture.
Mold and Your Health
Molds release several substances that can cause allergic reactions, irritations, and toxic effects when touched or inhaled. While most strains of mold are harmless, there are more than 100 different kinds of indoor molds Trusted Source National Library of Medicine, Biotech InformationThe National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.View Source that may be harmful to humans Trusted Source National Library of Medicine, Biotech InformationThe National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.View Source . Fortunately, only a small number of these molds are usually found in homes.
Health effects from mold Trusted Source United States Environmental Protection Agency (EPA)The mission of EPA is to protect human health and the environment.View Source can vary, but common reactions may include:
- Skin redness or rash
- Itchy, red eyes
- Sneezing
- Nasal congestion
- Chronic cough
- Blurred vision
More severe symptoms such as fever, shortness of breath, and lung infection may occur from mold exposure in people with underlying health conditions or a weakened immune system. Children exposed to mold in the first year of life may have an increased risk Trusted Source National Institutes of Health (NIH)The NIH, a part of the U.S. Department of Health and Human Services, is the nation’s medical research agency — making important discoveries that improve health and save lives.View Source of developing asthma.
Mold and Your Sleep
In addition to the many health problems mold can cause, research suggests that mold exposure may also compromise sleep. In one large study, household molds were correlated with increased sleep problems Trusted Source National Library of Medicine, Biotech InformationThe National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.View Source like insomnia, snoring, and excessive daytime sleepiness. Another study of nearly 5,000 adults found that people who reported mold odors at home also reported higher rates of sleep disturbances Trusted Source National Library of Medicine, Biotech InformationThe National Center for Biotechnology Information advances science and health by providing access to biomedical and genomic information.View Source .
In addition, indoor molds are a known cause of allergic rhinitis Trusted Source Medline PlusMedlinePlus is an online health information resource for patients and their families and friends.View Source . Emerging research Trusted Source JAMA Internal MedicineJAMA Internal Medicine is an international peer-reviewed journal providing innovative and clinically relevant research for practitioners in general internal medicine and internal medicine subspecialties.View Source shows the potential for allergic rhinitis to cause a host of sleep problems Trusted Source PLOS ONEPLOS ONE is an inclusive journal community working together to advance science for the benefit of society, now and in the future. Founded with the aim of accelerating the pace of scientific advancement and demonstrating its value, we believe all rigorous science needs to be published and discoverable, widely disseminated and freely accessible to all.View Source including insomnia, restless sleep, obstructive sleep apnea, and snoring.
The Moldy Bedroom
Though your bedroom may appear clean and tidy, a host of factors can turn your sleep sanctuary into a habitat for mold. Mold is capable of growing on a variety of materials Trusted Source Centers for Disease Control and Prevention (CDC)As the nation’s health protection agency, CDC saves lives and protects people from health threats.View Source , particularly porous and natural materials such as cardboard, paper, wood products, and ceiling tiles. Mold can also grow inside other surfaces around your bedroom including the wallpaper and insulation.
Water Sources, Humidity, and Condensation
Molds need sufficient moisture to grow and spread. The bedroom can harbor hidden moisture from leaks in the roof, windows, pipes, or areas of flooding. These moisture sources are all commonly associated with mold growth. Mold can also form if water is spilled and not dried within 48 hours.
However, it does not take an overt spill or leak for mold to form. Mold can arise if your bedroom is excessively humid or accumulates condensation, which can result from poor ventilation. Even modest amounts of condensationcan support mold growth. Areas of your bedroom with minimal air movement Trusted Source United States Environmental Protection Agency (EPA)The mission of EPA is to protect human health and the environment.View Source , such as behind furniture and inside closets, may have higher levels of condensation and dampness.
Signs of a Moldy Bedroom
If you’re inspecting your bedroom for mold, it’s important to know that mold can grow for some time before it becomes visible. Therefore, when assessing your bedroom, keep an eye out for these signs of mold growth Trusted Source United States Environmental Protection Agency (EPA)The mission of EPA is to protect human health and the environment.View Source :
- A humid or damp closet
- Condensation on windows
- Cracking paint, a dark area on a wall, or other signs of water damage
- An unusual, musty odor
You may also see mold develop in areas with regular moisture or condensation. For example, black mold spots may become visible in corners of your bedroom or behind furniture that is kept up against the wall.
Sometimes mold may be concealed underneath wallpaper, paneling, carpet, or behind walls. If you suspect that hidden mold is growing in your bedroom, it’s smart to consider hiring a professional who can perform a thorough investigation of your home.
Controlling Mold in the Bedroom
Keep in mind that it’s nearly impossible to keep mold spores from entering your home. Microscopic spores can come in through open airways, windows, and vents, or latch onto clothing and pets. Therefore, the best approach to preventing mold is to make sure your bedroom environment doesn’t support its growth.
Preventing Mold Growth
To prevent mold in your bedroom, it’s important to control humidity, increase ventilation, and immediately clean up any standing water or spills. To accomplish this, make sure to:
- Keep humidity low and consider using a digital monitor to keep humidity between 30% and 50%
- Ensure proper ventilation and airflow
- Quickly treat any structural water leaks from the roof, pipes, or other sources
- Use a dehumidifier or A/C if your bedroom is prone to moisture
- Move furniture away from the wall
- Create space between clothes and other items in your closet
- Do not leave stacks of clothing, bedding, or papers undisturbed for long periods
- If water spills on your carpet or mattress, clean and dry it within 48 hours
- Enlist professional help for large water spills or flooding
Getting Rid of Mold
Should you discover mold growth, prompt and thorough cleaning is critical. Consider the following guidelines for effective cleaning:
- Nonporous materials and hard surfaces can be cleaned with chemical products, soap and water, or a bleach solution
- Wear gloves, goggles, and a respirator when cleaning mold in order to protect against airborne particles
- Porous materials with mold should be discarded, not cleaned
- Remove and replace moldy insulation, ceiling tiles, and drywall
- Mold growth over 10 square feet may require professional cleaning
The Environmental Protection Agency and many local health departments offer additional guidance for cleaning household mold.
Is It Important To Test Mold?
Mold growing in your bedroom — no matter the type — should be removed. The health risk is not necessarily tied to a certain type or amount of mold. Therefore, there are no federal limits on acceptable levels of indoor mold, and expert groups typically do not recommend routine testing for mold strains.
The important thing is to rid your home of any known mold immediately, or better yet, prevent mold from growing in the first place. You’ll rest better knowing that you’re doing everything you can to keep this silent invader out of your bedroom.
Written By
Eric Suni,Staff Writer
Eric Suni has over a decade of experience as a science writer and was previously an information specialist for the National Cancer Institute.
Medically Reviewed by
Heather Wright,PathologistMD
Dr. Wright, M.D., is an Anatomic and Clinical Pathologist with a focus on hematopathology. She has a decade of experience in the study of disease.
References
15 Sources
Consensus Conference Panel, Watson, N. F., Badr, M. S., Belenky, G., Bliwise, D. L., Buxton, O. M., Buysse, D., Dinges, D. F., Gangwisch, J., Grandner, M. A., Kushida, C., Malhotra, R. K., Martin, J. L., Patel, S. R., Quan, S. F., Tasali, E., Non-Participating Observers, Twery, M., Croft, J. B., Maher, E., … Heald, J. L. (2015). Recommended amount of sleep for a healthy adult: A joint consensus statement of the American Academy of Sleep Medicine and Sleep Research Society. Journal of Clinical Sleep Medicine, 11(6), 591–592.
https://pubmed.ncbi.nlm.nih.gov/25979105/Centers for Disease Control and Prevention. (2020, August 11). Basic Facts about Mold and Dampness., Retrieved December 13, 2021, from
https://www.cdc.gov/mold/faqs.htmWood, R. A., Eggleston, P. A., Lind, P., Ingemann, L., Schwartz, B., Graveson, S., Terry, D., Wheeler, B., & Adkinson, N. F., Jr (1988). Antigenic analysis of household dust samples. The American Review of Respiratory Disease, 137(2), 358–363.
http://www.atsjournals.org/doi/abs/10.1164/ajrccm/137.2.358Seguel, J. M., Merrill, R., Seguel, D., & Campagna, A. C. (2016). Indoor Air Quality. American journal of lifestyle medicine, 11(4), 284–295.
https://pubmed.ncbi.nlm.nih.gov/30202344/Environmental Protection Agency. (2021, August 14). A Brief Guide to Mold, Moisture and Your Home., Retrieved December 13, 2021, from
https://www.epa.gov/mold/brief-guide-mold-moisture-and-your-homeNational Institute of Environmental Health Sciences. (2021, November 4). Mold., Retrieved December 13, 2021 from
https://www.niehs.nih.gov/health/topics/agents/mold/index.cfmWang, J., Janson, C., Lindberg, E., Holm, M., Gislason, T., Benediktsdóttir, B., Johannessen, A., Schlünssen, V., Jogi, R., Franklin, K. A., & Norbäck, D. (2020). Dampness and mold at home and at work and onset of insomnia symptoms, snoring and excessive daytime sleepiness. Environment international, 139, 105691.
https://linkinghub.elsevier.com/retrieve/pii/S0160412020301008Shiue I. (2015). Indoor mildew odour in old housing was associated with adult allergic symptoms, asthma, chronic bronchitis, vision, sleep and self-rated health: USA NHANES, 2005-2006. Environmental Science and Pollution Research International, 22(18), 14234–14240.
http://link.springer.com/10.1007/s11356-015-4671-8A.D.A.M. Medical Encyclopedia. (2020, February 2). Allergic rhinitis., Retrieved December 13, 2021, from
https://medlineplus.gov/ency/article/000813.htmLéger, D., Annesi-Maesano, I., Carat, F., Rugina, M., Chanal, I., Pribil, C., El Hasnaoui, A., & Bousquet, J. (2006). Allergic rhinitis and its consequences on quality of sleep: An unexplored area. Archives of internal medicine, 166(16), 1744–1748.
http://archinte.jamanetwork.com/article.aspx?doi=10.1001/archinte.166.16.1744Liu, J., Zhang, X., Zhao, Y., & Wang, Y. (2020). The association between allergic rhinitis and sleep: A systematic review and meta-analysis of observational studies. PloS one, 15(2), e0228533.
https://pubmed.ncbi.nlm.nih.gov/32053609/Centers for Disease Control and Prevention. (2020, July 17). You Can Control Mold., Retrieved December 13, 2021, from
https://www.cdc.gov/mold/control_mold.htmStorey, E., Dangman, K., Schenck, P., DeBernardo, R., & Yang, C. (2004). Guidance for clinicians on the recognition and management of health effects related to mold exposure and moisture indoors. Center for indoor environments and health., Retrieved December 13, 2021, from
https://health.uconn.edu/occupational-environmental/wp-content/uploads/sites/25/2015/12/mold_guide.pdfEnvironmental Protection Agency. (2001, July 13). Mold coure chapter 2: why and where mold grows., Retrieved December 13, 2021, from
https://www.epa.gov/mold/mold-course-chapter-2Environmental Protection Agency. (2021, November 4). Text Version of the Mold House Tour., Retrieved December 13, 2021, from
https://www.epa.gov/mold/text-version-mold-house-tour
Learn more about the Bedroom Environment
Bedroom Environment: What Elements Are Important?
ByDanielle Pacheco March 8, 2024
How to Sleep When It’s Hot Outside
ByDanielle Pacheco March 8, 2024
Humidity and Sleep
ByDanielle Pacheco March 8, 2024
Best Temperature for Sleep
ByDanielle Pacheco March 7, 2024
Blue Light: What It Is and How It Affects Sleep
ByRob Newsom January 12, 2024
Technology in the Bedroom
ByEric Suni January 5, 2024
Music and Sleep
ByRob Newsom November 8, 2023
How To Cool a Room During Summer
ByEric Suni November 8, 2023
How to Design the Ideal Bedroom for Sleep
ByEric Suni November 8, 2023
Light and Sleep
ByEric Suni November 8, 2023
How To Make Your Room Dark
ByAlexa Fry November 8, 2023
White Noise
ByJay Summer November 8, 2023
Using an Air Purifier for Better Sleep
ByRob Newsom October 20, 2023
What Color Helps You Sleep?
ByJay Summer September 19, 2023
What Color Light Helps You Sleep?
ByJay Summer September 13, 2023
Can Pink Noise Help You Sleep?
ByDanielle Pacheco July 21, 2023
Humidifiers and Sleep
ByJay Summer June 22, 2023
How Smell Affects Your Sleep
ByEric Suni March 9, 2023
Load More Articles
Other Articles of Interest
Best Mattresses
Best Pillows
Best Sheets
Back
We Are Here To Help You Sleep.
Tell us about your sleep by taking this brief quiz.
Based on your answers, we will calculate your freeSleep Foundation Score™and create a personalized sleep profile that includes sleep-improving products and education curated justfor you.