Mlily Cool Protect Mattress Protector Review
A mattress protector sold on cooling, which is worth taking seriously for one reason most buyers never consider.
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Verdict
A mattress protector sold on cooling, which is unusual and worth taking seriously for one reason: an ordinary protector is the most common thing undoing a cooling mattress, and almost nobody realises it.
Buy it if
You have bought a mattress partly for its temperature and you need a protector, which you do.
Avoid it if
Nobody. If you dislike this one, buy a different breathable protector, and buy one.
See the current Mlily offer
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| Specification | Detail |
|---|---|
| Type | Mattress protector with a cooling treatment |
| Primary function | Preventing the stains that void a guarantee |
| Why cooling matters here | A non-breathable protector seals off the airflow you paid for |
| What to check | Waterproof rather than water resistant, breathable, deep enough skirt |
| When to fit it | The day the mattress arrives, before the first night |
The scores
A good protector that addresses a problem most buyers do not know they have.
A protector is the cheapest insurance in bedding by a wide margin.
Check the specific model states waterproof rather than water resistant.
The reason to choose this over a cheap plastic-backed protector.
Check the skirt against your mattress, which may be 31cm or more.
Machine washable, which is the whole point of having one.
Varies by seller. Check before ordering.
A cheap protector undoes a cooling mattress
The layer nobody accounts for
Cheap waterproof protectors are essentially plastic sheets with a fabric face. They stop liquid, and they also stop air.
Put one over a mattress with a 16 centimetre spring layer and you have sealed off the airflow that was doing the cooling. The mattress underneath is unchanged and the thing that made it work is now behind a barrier.
This is the most common reason someone buys a hybrid specifically for temperature, adds a twelve pound protector, and cannot understand why it sleeps warm.
A membrane backed with a breathable fabric costs more and is worth it, particularly on a mattress you chose partly for its cooling. It is the one place where paying extra for a protector genuinely changes something.
Why you need a protector at all
Every mattress guarantee in this category excludes stained mattresses, and most exclude them absolutely rather than conditionally. It does not matter how the stain got there or whether it relates to the fault you are claiming for.
Read that alongside owning a mattress for eight to ten years, possibly with children, illness, drinks or pets involved, and the probability of at least one stain is high.
So a protector costs a small fraction of a mattress and removes the single most common reason a legitimate claim is refused. It is the one upsell in this industry I think is genuinely in the buyer's interest.
Fit it the day the mattress arrives, before the first night. A stain that happens before you got round to ordering one counts exactly the same as any other. And consider owning two, so the mattress is never bare on wash day.
A correction worth making
Commonly repeated, and wrong
Mattress protectors are marketed on hygiene and allergens, and on a mattress chosen for its temperature the more consequential property is breathability. Cheap waterproof protectors are effectively plastic sheets: they stop liquid and they stop air, sealing off the airflow through a spring layer that was doing the cooling. A membrane backed with breathable fabric costs more and is the one place where paying extra for a protector changes the result.
Should you buy it?
Buy a protector, and on a mattress chosen for its temperature buy a breathable one specifically. Fit it before the first night.
Check it says waterproof rather than water resistant, and check the skirt depth against your mattress, which may be 31 centimetres or more.
Questions people ask
Can a mattress protector make a mattress hotter?
Yes. Cheap waterproof protectors are essentially plastic sheets: they stop liquid and they stop air. Over a mattress with a deep spring layer, that seals off the airflow that was doing the cooling.
Do I really need a mattress protector?
Yes. Mattress guarantees exclude stained mattresses, usually absolutely and regardless of whether the stain relates to the fault claimed. Over eight to ten years the probability of at least one stain is high. Fit it before the first night.