Mlily Supreme 5000 Review

The entry point of Mlily's high count range, and the model where the question changes from how many springs to what they are for.

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Verdict

7.0/ 10

The entry point of Mlily's high count range, and the model where the question changes from how many springs to what they are for. Five thousand springs in a king is a plush mattress specification, and buying one for firm support is the most common mistake at this level.

Buy it if

You want a plush or medium surface with fine contouring and excellent motion isolation.

Avoid it if

You want firm support, or you are heavier. Fewer, stronger springs serve you better than more, thinner ones.

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Mlily Supreme 5000 at a glance
SpecificationDetail
TypePocket sprung, high count
Springs5,000 in a king size
What high counts suitPlush and medium surfaces where fine independent response matters
What they suit lessFirm mattresses, where you barely compress the surface
Also in rangeSupreme 8000 and Supreme 10000

The scores

Overall
7 / 10

A well built high count mattress, suited to a narrower purpose than the number implies.

Value
7 / 10

Competitive for the count. The count is not the point at this level.

Support
7 / 10

Fine contouring. Individual spring strength is lower than at 2,000.

Temperature
8 / 10

A dense spring layer moves air well.

Edge support
6 / 10

Not specifically reinforced.

Motion isolation
9 / 10

The genuine benefit of a high count. Very little transmits.

Trial and guarantee
6 / 10

Varies by seller. Check before ordering.

Decoding the range

The number is the spring count, except in the foam ranges

In Mlily's Gel, Deluxe, Premier, Supreme and Haluna collections, the number in the model name is the spring count in a king size. A double has fewer and a single fewer still, because spring density stays roughly constant while the area shrinks.

In the Memory and Memory Gel collections there are no springs at all and the number is a tier marker. That is the one place buyers get caught out.

What 5,000 springs is actually for

High spring counts are marketed as evidence of superior support, and mechanically they represent close to the opposite trade.

To fit 5,000 springs into a king size, each unit must be smaller and made from thinner gauge wire than the 2,000 in a mid-range mattress. What you gain is finer contouring and better motion isolation, because a partner's movement is absorbed by fewer units and travels less far. What you lose is individual spring strength.

That trade is worth taking on a plush mattress, where you sink into the surface and need each small region to respond independently. On a firm mattress, where you barely compress the surface, fine gradation does considerably less.

So the honest guidance: buy a high spring count if you want a softer feel and excellent motion isolation. Do not buy one believing it is a stronger mattress, because the opposite is closer to true.

Comparing the Supreme models

Past about 2,000 springs, what determines how a mattress feels is the comfort layer above them, and the numbering tells you nothing about that.

So comparing the Supreme 5000, 8000 and 10000 on their numbers is comparing the wrong thing. Look at the comfort layer depth, the material and the stated firmness across the three, and pick on those.

A heavier sleeper should look at firmness and spring gauge rather than count. Rem-Fit's 4000 Ortho Elite at 9 out of 10 and Otty's Extra Firm with reinforced side panels are the two UK options I would shortlist instead.

A correction worth making

Commonly repeated, and wrong

Very high spring counts are marketed as evidence of superior support, and mechanically they represent the opposite trade. Fitting 5,000 springs into a king size requires each unit to be smaller and made from thinner gauge wire than the 2,000 in a mid-range mattress. The gain is finer contouring and better motion isolation; the loss is individual spring strength. High counts suit plush mattresses and add much less on firm ones.

Should you buy it?

Yes if you want a plush or medium surface with excellent motion isolation, and you have compared the comfort layers across the Supreme range rather than the numbers.

If you want support rather than contouring, the Premier 2000 with fewer, stronger springs is the better mattress and costs considerably less.

Questions people ask

Is a higher spring count always better?

No. Fitting 5,000 springs into a king requires each to be smaller and thinner-gauged than the 2,000 in a mid-range mattress. You gain finer contouring and motion isolation and lose individual spring strength.

What should a heavier sleeper look for?

Firmness and spring gauge rather than count. Fewer, stronger springs serve a heavier body better than more, thinner ones, so a well-built 2,000 spring firm mattress often outperforms a 6,000 spring plush one for that sleeper.