Where mites live and why they come back
The Health Inspectorate (Veselības inspekcija) states that dust mites multiply in mattresses, bedding and upholstered furniture when the relative humidity is 50–70% and the temperature is raised. They feed on dead skin cells. Practice guidelines state that allergens are found in settled dust in bedding and upholstered furniture, not on hard surfaces.
So mites are governed by the conditions in the home, not by how clean the mattress is on any one day. While the air is humid, new mites come back. This explains why a single clean cannot be a long-term solution.
What helps and how well
| Step | What the sources say | Honest assessment |
|---|---|---|
| Humidity below 50% | above 50% conditions favour mites; target 35–50%, measured with a hygrometer | the basis for everything else |
| Protective covers for the mattress | one of the most effective steps | together with other steps |
| Bedding at 60 °C or more | recommended in Allergy UK materials | a simple, regular job |
| Vacuuming | frequent vacuuming; for upholstered furniture a vacuum cleaner with a high-filtration filter | has to be done regularly |
| Acaricides | not recommended: limited effect, concerns about chemicals in the home | do not use on your own initiative |
| Tannic acid | only slightly effective | do not count on it |
| Furniture cleaning | no source shows that a single clean gets rid of mites or improves an allergy | do not rely on it |
An overview of allergen reduction notes that in many studies these measures have not improved clinical outcomes. Allergy UK adds that several measures are needed at once. That does not make them pointless, but there is no quick solution. If an allergy troubles you, start with a doctor, and use these steps as support, not as treatment.
Humidity limits: Health Inspectorate and practice guidelines on dust mites. 60 °C: Allergy UK. Sources checked 07.11.2026
Does the mattress need replacing?
The sources do not require it because of mites alone. But if the mattress is old, damp or smells, replacing it may be more sensible than cleaning it. It is important to understand that a new mattress in a damp bedroom will end up in the same conditions. So first measure the humidity and sort out the airing. For the bedroom, the Health Inspectorate recommends opening a window every morning for at least 15 minutes.
With a sofa, the honest assessment is more cautious still. A research overview calls woven furniture fabric a significant mite reservoir, but the evidence of clinical benefit from removing it is limited. So replacing a sofa because of an allergy is not a given. It is better to discuss this with a doctor before you buy new furniture or order cleaning in the hope of better health.
What to do first
- Measure the humidity. A hygrometer in the bedroom will show whether the humidity is below 50%. If it is not, start with airing and the causes of the damp.
- Wash the bedding at 60 °C. If the fabric allows it. See the label.
- Put on a protective cover. A cover seals off the mattress. It is one of the steps a research overview calls most effective.
- Vacuum regularly. Clean the mattress and upholstered furniture with a vacuum cleaner that has a high-filtration filter.
- Do not douse the mattress. Moisture does a mattress no good: foam is sensitive, and water can stay in the core. Do not use sprays or liquids against mites.
If something bites, it is not dust mites
Bedbugs and fleas are insects, not mites, and that is a job for pest control, not cleaning. The register of service providers is on the Health Inspectorate website.
When to order mattress or sofa cleaning
Cleaning is worth ordering because the mattress or sofa has stains, a smell or a dirty surface, not because of mites. Cleaning is not allergy treatment. If you want a clean surface, mattress cleaning and sofa cleaning take place at your home in Riga and the Riga region.
Mattress: single from €30, double from €45 (one side), second side +50%. Sofa: two-seater from €35, three-seater from €45. The minimum order is €45: if the total is lower, you pay €45. Travel is included in Riga and up to about 15 km outside Riga; further out it is from €10.
Sources
- Mites multiply in mattresses, bedding and upholstered furniture at 50–70% humidity; comfort range 40–60%; bedroom aired for at least 15 minutes; register of service providers checked 7 November 2026
- Humidity above 50% favours mites, target 35–50%, hygrometer; allergens in settled dust; acaricides not recommended checked 7 November 2026
- Most effective approach: covers, humidity control, frequent vacuuming; no clinical improvement in many studies; woven fabric as a reservoir checked 7 November 2026
- Bedding at 60 °C or more; vacuuming with a high-filtration filter; below 50%; several measures needed checked 7 November 2026
- With bedbugs, contact a pest control service checked 7 November 2026
- Foam is sensitive to moisture; water can stay in the core checked 7 November 2026