How to Get Rid of Bed Bugs in Your Mattress (and What Doesn't Work)
By the Morfeo sleep team, mattress manufacturers in Yecla (Murcia) · Updated in September 2026
Quick answer
Dust mites are not completely eliminated: they are reduced. Anyone who promises you a "dust mite-free" mattress is selling you smoke. Four things do measurably lower the amount: a washable barrier cover, washing your bedding at 60°C, keeping the room's humidity below 50%, and vacuuming slowly. Dust mite sprays contribute the least of all.
In this guide
If you wake up with a stuffy nose and it goes away after leaving the house, the bedroom has something to do with it. This guide is what really reduces dust mites, without impossible promises. If you suspect you have an allergy, a doctor is the one who confirms it: here we only talk about what you can do with the bed.
What they are and why they live in the mattress
They are microscopic arachnids that do not sting or bite. The problem is not them, it is their remains: the particles they leave become fine dust, are inhaled, and that is what people with allergies react to.
And they live in the mattress because it has the two things they need: heat and humidity. Every night you sweat around half a liter, and part of that humidity stays inside. A mattress that does not ventilate is their best place in the house.
What works, in order
- A washable barrier cover. It is the only thing that cuts off contact between you and what is in the mattress. It must cover the entire mattress and be washable at 60°C. It is by far the measure with the best effort-to-result ratio.
- Wash your bedding at 60°C every one or two weeks. Below that temperature is not enough. Sheets and pillowcases; the protector, at the temperature indicated on its label.
- Lower the bedroom humidity below 50%. Ventilate daily, do not dry clothes inside, and use a dehumidifier if you live in a humid area. Without humidity, they do not reproduce.
- Vacuum slowly, with a HEPA filter. Once a week if there is an allergy. What takes them away is the vacuuming time over each area, not the power. Without a HEPA filter, the vacuum returns a good part of what it collects to the air.
- Air out the bed every morning. Ten minutes with the sheets removed and the window open, before making it. Let the night's humidity out instead of trapping it.
A washable protector does more than any sprayed product (Morfeo's are washed at 30°C maximum; sheets, at 60°C). The Tencel one adds a waterproof barrier; the FreshCool, a thermoregulating fabric.
What doesn't work (even if they sell it to you)
| Method | What really happens |
|---|---|
| Dust mite sprays | Short and disputed effect, and they add chemicals where you breathe for eight hours. They do not replace the cover or washing at 60°C |
| "Anti-dust mite" mattresses | No mattress is immune. Some accumulate less than others, but none are free |
| Take the mattress out into the sun | It helps a bit with humidity, but the sun does not reach the inside and the fabric degrades |
| Freeze | It works for a stuffed animal, not for a mattress. There is no practical way to do it at home |
| Steam | It puts hot water into the mattress: you end up with more humidity, which is exactly what feeds them |
| Ozone or purifiers | They act on the air, not on what lives inside the mattress |
Which mattress accumulates the least
There are no immune mattresses, but there are differences, and they all go in the same direction: humidity.
- Pocket spring core: air circulates between the springs all night, so humidity goes out instead of staying. It is the structure that performs best.
- Natural latex: very breathable and not very conducive to them. It is the other good option.
- Solid foam block: the worst case. It does not ventilate inside and retains the humidity of every night.
- OEKO-TEX® certified fabrics: they do not repel dust mites, but they guarantee that no harmful substances are added.
And one thing almost no one says: a mattress over eight years old accumulates remains in layers where the vacuum cleaner no longer reaches. Once it gets to that point, cleaning yields little.
Two answers
Where do you start?
What is happening to you?
Do you have a protector on the mattress?
Congestion upon waking that improves when leaving the house points to the bedroom. Put on a washable protector, wash the sheets at 60°C, and ventilate every morning. In two weeks you will know if that was it.
With sneezing and itching, attack both sources at once: washable barrier cover and room humidity below 50%. Vacuum slowly once a week with a HEPA filter.
With a confirmed allergy, it is worth doing it all: a cover that covers the entire mattress, sheets at 60°C every week, humidity below 50%, and vacuuming with HEPA. And follow what your doctor tells you.
If you already have a protector and you are still congested, look at two things: that you wash the sheets at 60°C —not 40— and the bedroom humidity. With more than 50%, no cover will fix it.
With a protector on and symptoms, what is usually missing is the weekly vacuuming with a HEPA filter and the washing of the sheets at 60°C (the protector, according to its label).
With a diagnosed allergy, protector on and the whole protocol done, what is left is the mattress itself: from eight years on, it accumulates remains where the vacuum cleaner does not reach.
This is general information about bed care. If you have persistent symptoms, consult a healthcare professional.
Frequently asked questions
Can dust mites be completely eliminated from the mattress?
No. They are greatly reduced, but not eliminated: they are in any inhabited house. Anyone who sells a "dust mite-free" mattress is exaggerating.
What reduces dust mites the most?
A barrier cover that covers the entire mattress and is washed at 60°C. Then, wash the bedding at that same temperature and keep the room humidity below 50%.
Do anti-dust mite sprays work?
Little. Their effect is short and disputed, and they add chemical product where you will breathe for eight hours. They never replace the cover or washing at 60°C.
At what temperature should sheets be washed?
At 60°C. Below that is not enough. Wash sheets and pillowcases every one or two weeks; the protector, according to its label.
Do memory foam mattresses have more dust mites?
Not because of the material itself, but because of ventilation. A solid foam block retains more humidity than a pocket spring or latex core, and humidity is what feeds them.
How often should I vacuum the mattress if I have an allergy?
Once a week, slowly and with a HEPA filter. Without a HEPA filter, the vacuum returns a good part of what it collects to the air.
When should the mattress be changed for this reason?
If it is over eight years old, you have put on a barrier cover, wash at 60°C, and you still wake up congested, the mattress already accumulates remains in layers that are not reached by cleaning.
Mattresses that ventilate inside
Pocket springs and natural latex, manufactured in Yecla (Murcia). 100 test nights and 10 years warranty.
