Silentnight Sofia 1200 Mirapocket Review
Twelve hundred pocket springs with Silentnight's zoned support, which is one of the few mattress technologies where the marketing and the physics actually agree.
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Verdict
Twelve hundred pocket springs with Silentnight's zoned support, which is one of the few mattress technologies where the marketing and the physics actually agree. Zoning is genuinely useful and almost nobody explains why.
Buy it if
You want zoned pocket springs from an established manufacturer with a comfort exchange, at average build.
Avoid it if
You are heavier than about sixteen stone, where you want a firmer build and more spring strength.
See the current Silentnight offer
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Silentnight on Amazon UK
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| Specification | Detail |
|---|---|
| Type | Pocket sprung with zoned support |
| Springs | 1,200 Mirapocket |
| Zoning | Spring gauge varies along the mattress |
| Manufacturer | Silentnight, making beds in Barnoldswick since 1946 |
| Comfort exchange | 60 nights, buying direct only |
The scores
Sound zoned construction from a manufacturer that will still exist in ten years.
Competitive, and the comfort exchange has real value at this level.
Zoned 1,200 springs. Good at average build.
A genuine pocket spring unit moves air properly.
Reasonable. Not specifically reinforced.
Individually pocketed springs, which is the point of buying pocket sprung.
60 nights direct, from a manufacturer trading since 1946.
Zoning is one of the few technologies that works as described
A great deal of mattress marketing describes effects that do not survive examination. Zoning is not one of them.
A zoned spring unit varies spring gauge along the length of the mattress: firmer wire under the lumbar region, more giving wire under the shoulder and hip.
That solves a real geometric problem. When you lie on your side, your shoulder and hip are the widest parts of you and need to sink in for the spine to stay straight. Your waist is narrower and needs to be held up. A uniform mattress cannot do both. Soft enough for the shoulder means the waist drops; firm enough for the waist means the shoulder is compressed, which is where numb arms come from.
Zoning lets one mattress do both, which is exactly what it claims. The effect is modest rather than dramatic, and it is real, and it is why zoned mattresses suit side sleepers particularly.
Note the same principle in Emma's Original Lite at 199 pounds, which has a three-zone spring layer and is the cheapest zoned mattress I know of in the UK.
What 1,200 springs is and is not
Twelve hundred in a king sits in the band where most people should be.
Below about 800, neighbouring springs compress together and the mattress responds to the region your hip is in rather than the shape of your hip. Above 2,000, manufacturers add springs by using thinner wire in smaller units, trading individual spring strength for finer contouring.
So 1,200 is past the floor and well short of the point where the trade begins. Every spring is doing individual work and none has been thinned to make room for the next.
What it does not give you is headroom for a heavier body. Over about sixteen stone, you want a firmer build and stronger springs rather than more of them.
The comfort exchange is worth more than the price difference
Silentnight's 60 night comfort exchange, available buying direct, lets you change to a different firmness rather than only returning the mattress.
That matters because firmness is the thing buyers get wrong most often and it cannot be judged without sleeping on a mattress for several weeks.
Third party sellers generally offer returns on an unused mattress only, which is a different product described in similar words. Once you have slept on it, it is yours.
So even when a third party is cheaper, buying direct is usually the better decision, and the difference is insurance rather than a premium.
A correction worth making
Commonly repeated, and wrong
Mattress technologies are broadly treated as marketing, and zoned support is one of the few where the claim and the physics agree. Varying spring gauge along the mattress, firmer under the lumbar and more giving under shoulder and hip, solves a real geometric problem: a uniform mattress soft enough to let a side sleeper's shoulder sink will let the waist drop, and one firm enough to hold the waist compresses the shoulder.
Should you buy it?
Yes at average build. Zoned pocket springs, a 60 night comfort exchange, and a manufacturer that has made beds in the same town since 1946 is a sound combination.
Buy direct for the comfort exchange. If you are heavier than about sixteen stone, look at Rem-Fit's 4000 Ortho Elite instead.
Questions people ask
Does mattress zoning actually work?
Yes, and it solves a real geometric problem. On your side, your shoulder and hip need to sink in while your waist needs holding up. A uniform mattress cannot do both: soft enough for the shoulder lets the waist drop, firm enough for the waist compresses the shoulder.
Is 1,200 springs enough?
For most people, yes. Below about 800 neighbouring springs compress together. Above 2,000 manufacturers add springs by using thinner wire. At 1,200 every spring does individual work and none has been thinned to make room for the next.