Dust mites are tiny creatures that thrive in warm, humid environments, and your bed can provide plenty of what they need. You can’t see them without magnification, but their presence can still be a problem for people who are sensitive to their allergens.
Dust mites feed on dead skin cells and leave behind waste particles and body fragments that can become airborne. For people with allergies or asthma, exposure can lead to symptoms ranging from sneezing and itchy eyes to coughing and breathing problems.
A symptom by itself doesn’t prove that dust mites are living in your mattress. Many of these signs can have other causes. Still, if your symptoms seem worse in bed or right after waking up, your bedroom may be worth a closer look.
Here are 10 signs that could point to dust mite exposure in your sleeping area.
You Have Itchy Skin
Waking up with itchy skin can have plenty of explanations, from dry air and new laundry detergent to eczema and allergies. Dust mite allergens can also aggravate skin symptoms in people who are sensitive to them.
The allergens come mainly from dust mite waste and body fragments. As you move around in bed, these particles can become airborne and settle on your skin.
Medical News Today reports that dust mites may contribute to eczema symptoms in people who are already prone to the condition.
If your itching seems to be worse after spending time in bed, wash your bedding regularly and keep the bedroom as dry and clean as possible. Persistent or severe skin irritation should be discussed with a healthcare provider.
Your Sleep Is Disrupted
Sometimes the problem isn’t that you can’t fall asleep. It’s that you keep waking up.
Dust mite allergies can cause nasal congestion, coughing, sneezing, and other symptoms that make it harder to get comfortable at night. If those symptoms are strongest while you’re in bed, allergens in the bedroom could be contributing.
Research published in the National Library of Medicine found that people exposed to dust mite allergens reported problems such as poor sleep quality, snoring, and waking during the night.
Of course, poor sleep has many possible causes, so don’t assume dust mites are responsible without looking at the bigger picture.
You Have a Dry Cough
A dry cough that seems to get worse at night or first thing in the morning can sometimes be linked to indoor allergens.
Dust mite waste contains proteins that can trigger allergic reactions in susceptible people. Breathing these particles can irritate the airways and contribute to coughing, congestion, or other allergy symptoms.
If your cough is worse after spending several hours in bed, start by washing sheets and blankets regularly, cleaning the bedroom, and keeping humidity under control.
A cough that persists or interferes with breathing should be evaluated by a medical professional rather than blamed on dust mites alone.
Related: 14 Easy Ways to Keep Your Home Dust-Free
There’s a Noticeable Amount of Dust
A dusty bedroom doesn’t automatically mean you have a dust mite problem. Dust mites are microscopic, so you won’t be able to look at your mattress and see the mites themselves.
Still, household dust provides the food source they need. Dust contains dead skin cells, pet dander, and other particles that dust mites feed on.
The National Library of Medicine notes that thousands of dust mites can be found in a single gram of household dust.
Regular vacuuming, washing bedding, and reducing clutter around the bed can help keep dust levels down.
There’s a Musty Smell in the Bedroom
A musty bedroom can be a sign that the area is holding too much moisture. Dust mites prefer warm, humid conditions, so a damp bedroom can make it easier for them to thrive.
That doesn’t mean dust mites themselves are necessarily responsible for a musty smell. Mold, mildew, damp fabrics, and poor ventilation can all produce similar odors.
If your bedroom smells musty, check for moisture problems around windows, walls, carpets, and the mattress. Wash bedding regularly and improve ventilation if the room feels damp.
Your Baby Has Red or Irritated Skin
Red, irritated skin around a baby’s cheeks can have many causes, including eczema, drooling, sensitive skin, and allergies. Dust mite exposure can aggravate allergic or eczema symptoms in some children.
Babies spend a lot of time sleeping, so keeping their sleeping area clean is a sensible part of reducing exposure to household allergens.
Wash crib sheets and other bedding regularly according to the manufacturer’s instructions. A mattress cover made to reduce allergen exposure can also be useful.
If a baby develops a persistent rash, swelling, breathing problems, or other concerning symptoms, contact a pediatrician rather than assuming dust mites are the cause.
Related: 12 Must-Wash Items That Only Hot Water Can Tackle Effectively
You Have Trouble Breathing at Night
Waking up congested or struggling to breathe can be frightening. Dust mite allergens can trigger symptoms in people with allergies or asthma, and those symptoms may become more noticeable during the night.
Possible symptoms include wheezing, coughing, nasal congestion, and shortness of breath.
Keeping bedding clean and reducing bedroom humidity can help lower exposure to dust mite allergens. Mattress and pillow covers made to keep allergens contained may also help people with dust mite allergies.
Breathing difficulty should never be ignored. If you are having trouble breathing, seek medical attention rather than trying to solve the problem by cleaning your bedroom alone.
Your Eyes Are Dry, Itchy, or Red
If you wake up with itchy, watery, or irritated eyes, your bedding could be exposing you to allergens.
Dust mite particles can become airborne as you move around during sleep. In people who are sensitive to them, those particles can contribute to allergy symptoms affecting the eyes.
This can look a lot like irritation caused by pollen, pet dander, dry air, or other indoor allergens. If your eye symptoms keep returning, particularly in the bedroom, an allergy evaluation may help identify the cause.
Regularly washing pillowcases and sheets can also reduce the amount of allergen buildup around your face.
You Can’t Stop Sneezing
A few sneezes after waking up aren’t unusual, but repeated sneezing every morning could be a sign of an indoor allergy.
Dust mites are a common trigger of perennial allergic rhinitis, which can cause sneezing, congestion, runny or stuffy noses, and other symptoms throughout the year.
The Cleveland Clinic lists dust mites among the common indoor triggers of allergic rhinitis.
If your sneezing seems to happen mainly after waking up or while you’re in your bedroom, try washing bedding regularly, cleaning dust from nearby surfaces, and keeping humidity at a moderate level.
Your Asthma Gets Worse at Night
For people with asthma, dust mite allergens can trigger or worsen symptoms. Nighttime or early-morning coughing, wheezing, chest tightness, or shortness of breath may be signs that something in the bedroom is aggravating your asthma.
Washing bedding in hot water at least once a week can help reduce dust mite allergens. Allergen-proof covers for mattresses and pillows can also limit exposure.
Keep the bedroom clean and avoid letting humidity stay high for long periods.
If nighttime asthma symptoms are happening often, speak with your healthcare provider. Dust mites may be one trigger, but asthma can be affected by many things, and proper treatment matters.
