Miracoil is the name Silentnight puts on its open-coil spring system, and it’s still the backbone of the brand’s budget and mid-range mattresses. If you’ve shopped for a bed under £600, there’s a decent chance you’ve already seen the word on a swing tag without quite knowing what it means or how it stacks up against pocket springs.
This guide compares every current Miracoil model we could verify, on the brand’s own site and through its retailer exclusives at Dreams, MattressOnline, Argos and Costco, plus general Miracoil stock at MattressNextDay. We’ll cover firmness, pricing, what Silentnight’s own literature admits about the tech, and who’s better off paying more for a pocket-sprung alternative instead.
Key Takeaways
- Miracoil is a continuous open-coil system: one length of wire looped into connected rows, not individually pocketed springs.
- Silentnight’s own support guide rates open coil at roughly 5 years average lifespan versus up to 10 for pocket springs.
- Prices run from £109 (Comfort Miracoil Essentials, single) to £879 (UltraGel Miracoil Pillowtop, super king).
- Most Miracoil models sit on the firm side, which suits back sleepers and heavier builds better than side sleepers.
- Retailer-exclusive names (Ortho Dream Star, Epping, Travis) are the same coil tech rebadged, not separate Silentnight engineering.
What Is Miracoil, and How Is It Different From Pocket Springs?
Miracoil is Silentnight’s open-coil support system: a single continuous wire looped into interconnected rows that run head to toe, joined by helix wire and finished with a border rod for edge strength. Because the springs are linked, the whole unit moves together rather than independently. Source: Silentnight support systems guide
Mirapocket, Silentnight’s other main system, uses individually sewn pocket springs that move independently and respond to a sleeper’s shape and weight in zones. That’s a genuinely different build, not just marketing language. Dreams walks through the mechanical difference in more detail if you want a second opinion beyond the manufacturer’s own page. Source: Dreams
Bedstar’s own buying guide puts a similar number on the trade-off, from the retailer side rather than the manufacturer’s. It rates pocket-sprung mattresses at up to ten years of use against five to eight years for open coil, and says you’ll typically pay 10 to 20% more for the pocket-sprung upgrade. Source: Bedstar
What the listings don’t tell you: nowhere on Silentnight’s site could we find a published coil count for any Miracoil model. Model names like “Breathable 1750 Miracoil” look like a spring count but aren’t confirmed as one. The “up to 11,000 springs” figure you’ll sometimes see quoted for pocket mattresses is a retailer blog claim, not a Silentnight number. Treat any exact spring count you see for either system as marketing shorthand rather than a lab-tested spec.
What Does Silentnight Claim About Miracoil’s Support?
Silentnight markets Miracoil around three ideas: zoned support, “no roll-together” between two sleepers, and spinal alignment. These are the brand’s own marketing claims, not figures independently tested by a third party, so it’s worth reading them that way rather than as lab results. Source: Silentnight
On the Pillow Top listing, Silentnight describes the system as “scientifically proven to improve spinal alignment.” No study or methodology is linked from that page, so we can’t independently verify what that testing involved or who ran it. That doesn’t mean the claim is false. It just means it’s a brand statement rather than a citable finding, and it sits oddly next to the same brand’s own admission elsewhere that open coil has weaker motion isolation than pocket springs. Bear both statements in mind rather than just the flattering one.
The honest trade-off comes straight from Silentnight itself. Its own guide describes open coil as having an average lifespan of around 5 years, being prone to sagging over time, and offering poor motion isolation. That’s the effect where your partner rolling over disturbs your side of the bed. Pocket sprung is rated up to 10 years with high motion isolation by the same source. That’s a brand admitting its cheaper system wears faster, which is unusually candid and worth taking at face value. Source: Silentnight
Which Silentnight Miracoil Mattress Should You Buy?
Nine Miracoil models are currently listed on silentnight.co.uk, ranging from a £109 budget single to a £879 super king with gel-infused foam. The table below covers firmness, depth where confirmed, and current pricing pulled directly from the brand’s own product pages.
| Model | Firmness | Depth | Prices |
|---|---|---|---|
| Comfort Miracoil Essentials | Firm | 21cm | Single £109 / Small Double £169 / Double £179 / King £239 / Super King £329 |
| Miracoil Ortho | Firm | 24cm | Single £169 (was £299) |
| Comfort Miracoil Memory | Firm | 22.5cm | Single £320 / Double £429.99 / King £510 / Super King £620 |
| Eco Miracoil | Extra Firm | Not confirmed | Double £339 (RRP £599), listed out of stock at time of writing |
| Breathable 1750 Miracoil | Medium/Firm | Not confirmed | King £299 (RRP £618) |
| Miracoil Pillow Top | Medium/Firm | 27cm | Single £319 / Double £549 / King £579 / Super King £679 |
| UltraGel Miracoil Pillowtop | Medium/Firm | Not confirmed | Single £459 / Small Double £599 / Double £599 / King £719 / Super King £879 |
| Geltex Miracoil Ortho | Medium/Firm | Not confirmed | Price not verified at time of writing |
| Miracoil Memory | Firm | Not confirmed | Out of stock on brand site, possibly being phased out |
Prices verified on silentnight.co.uk, September 2026. Out-of-stock lines may return or be discontinued.
Notice how firm the whole range skews. Only three of the nine, the Breathable 1750, Pillow Top and UltraGel Pillowtop, get a “medium” mention at all, and even those are paired with firm. So what does that mean if you sleep on your side and need real shoulder and hip give? This isn’t the range to shop in, regardless of budget.
What Do the Retailer-Exclusive Miracoil Models Offer?
Several Miracoil variants only exist through specific retailers rather than on silentnight.co.uk itself. They use the same open-coil core but carry names and pricing set by the retailer, which makes direct comparison trickier. Four retailers currently do this: MattressOnline, Dreams, Argos/Habitat and Costco each sell their own exclusively-named version.
Extra firm · MattressOnline · from £237
Firm · Dreams · £339 flat
Medium firm · Argos/Habitat · from around £151
Not confirmed · Costco (5 sizes)
| Model | Retailer | Firmness | Price |
|---|---|---|---|
| Ortho Dream Star Miracoil | MattressOnline | Extra Firm | From £237 (Single–Super King) |
| Epping Miracoil Ortho | Dreams (exclusive) | Firm | £339 flat across all five sizes on the current listing |
| Travis Miracoil | Argos / Habitat (exclusive) | Medium firm | Single around £151–189 (indicative, Argos pricing not directly accessible) |
| Miracoil Memory Cushion Top | Costco (5 sizes) | Not confirmed | Costco members’ pricing, not publicly listed |
The Epping’s flat £339 price across every size from single to super king is unusual enough that we’d double-check it at checkout rather than assume it holds. Dreams also badges the Epping as a “Telegraph Best Value for Back Pain” pick on its own product page. That’s the retailer’s copy, not an independently verified award, so treat it as marketing rather than fact. Source: Dreams
The Argos and Habitat-exclusive Travis line is worth a closer look because it isn’t just one mattress. It splits into a Double Sided/Microquilt version plus separate Memory Foam and Tufted Ortho sub-variants, each built on the same Miracoil core but aimed at slightly different sleepers. Single prices sit somewhere around £151 to £189, though Argos’s own product pages weren’t directly accessible when we checked. Treat those figures as indicative rather than exact, and confirm the current price before you buy.
Our take: retailer-exclusive Miracoil models exist mainly so each seller has something you can’t price-match elsewhere. The coil system underneath is the same technology Silentnight sells directly, just wrapped in a different cover and name. If two models look similar on paper, the retailer with the better returns policy or delivery window is often the more useful tiebreaker than the name on the mattress.
How Much Do Miracoil Mattresses Cost Compared to Each Other?
Prices vary more than fourfold across the range even before you factor in sales. The chart below plots verified double-size prices for the five models where Silentnight publishes that size, giving a clearer sense of where each one sits on the ladder.
What Do Owners Say About Miracoil Mattresses?
Reviews on Mattressman’s Trustpilot pages give a decent read on real-world satisfaction. Miracoil-based single and double models average 4.7 out of 5 across 170 reviews, and an ortho king-size version averages 4.5 out of 5 across 295 reviews. Source: Trustpilot via Mattressman
Buyers consistently praise the value and support. The most repeated criticism is that the mattress feels firmer than the listing description suggested. How does that stack up against the brand as a whole? Our separate, honest assessment of whether Silentnight mattresses are any good digs into that wider picture, beyond just this one range.
That “firmer than expected” pattern lines up with the spec sheet. Seven of the nine brand-site models are rated Firm or Extra Firm, so if a listing photo looks plush and inviting, don’t assume the mattress will feel that way once you’re lying on it.
Does Body Weight Change Which Miracoil Model Suits You?
Yes, more than most buyers expect. A firm open-coil mattress that feels supportive under a heavier build can feel like sleeping on a shelf for someone lighter, because there isn’t enough bodyweight pressing down to let the coils flex properly.
That’s a general principle of spring mattresses, not a Silentnight-specific claim. It applies directly here, though, given how firm this whole range runs.
Lighter sleepers, roughly under 65kg, tend to get on better with the Breathable 1750, Pillow Top or UltraGel Pillowtop, the three models carrying any “medium” language at all. Heavier sleepers and committed back sleepers are usually better matched to the Ortho or Extra Firm models, where the firmer coil response resists sinking in the first place. If you’re unsure which side of that line you fall on, a mattress with a trial period is worth more than any spec sheet.
Who Should Buy Miracoil, and Who Should Pay More for Pocket Springs?
Miracoil earns its keep as a budget-to-mid-range option for back sleepers, heavier builds, guest rooms, and anyone who wants a firm, no-nonsense bed without spending £600 plus.
It’s not the mattress to buy if motion isolation matters, say you share a bed and one of you moves around a lot. It’s also not the right choice if you’re a side sleeper who needs the springs to contour rather than resist. Want that supportive, no-give feel but in a proper pocket-sprung build instead? Our guide to the Premier Inn Mattress 2.0 covers Silentnight’s other famously firm hotel-style mattress, built on Mirapocket rather than Miracoil.
Is it worth the jump to pocket springs? For couples with different sleep schedules or side sleepers with shoulder and hip pressure points, probably yes. Silentnight’s own Mirapocket range starts to look better value once you weigh the doubled expected lifespan against the higher upfront cost.
Our take: we’d steer first-time buyers on a tight budget toward the Comfort Miracoil Essentials or Miracoil Ortho for a spare room or a child’s first “big bed.” Anyone spending £400 or more is better off comparing a Mirapocket model before committing, since at that price point pocket springs are often only a modest premium away.
There’s a practical middle ground too. If you like the firmer feel Miracoil gives but the sagging timeline worries you, look at the Miracoil Pillow Top or UltraGel Pillowtop rather than the bare-bones Essentials. The added memory foam or gel layer on top won’t change the coil’s underlying lifespan, but it does soften the immediate feel. That’s often enough that buyers who’d normally want pocket springs end up satisfied with the compromise, at least for the first few years of ownership.
Want the full picture across every Silentnight range, not just Miracoil? Start with our full Silentnight mattress review, or jump straight to our ranked list of the best Silentnight mattresses if you want the short version. If sizing is the thing holding you back, check availability against our Silentnight mattress size guide first. And before you check out anywhere, it’s worth a quick look at how the main retailers compare, since the same Miracoil model can carry different delivery and returns terms depending on where you buy it.
Frequently Asked Questions
What does Miracoil actually mean on a Silentnight mattress?
It’s the name for Silentnight’s open-coil spring system: one continuous length of wire formed into connected rows with a border rod for edge support. It’s a cheaper, simpler build than the brand’s pocket-sprung Mirapocket system.
Is Miracoil as good as pocket springs?
Not by Silentnight’s own admission. The brand’s guide puts open coil at around 5 years average lifespan with poor motion isolation, against up to 10 years and high motion isolation for pocket springs. Miracoil is a value trade-off, not an equivalent alternative.
How firm are Silentnight Miracoil mattresses?
Mostly firm to extra firm. Of the nine current brand-site models, only three carry any “medium” description, and those are still paired with firm. Side sleepers who need softer give may want to look elsewhere in the Silentnight lineup.
Do Miracoil mattresses come in every size?
Listing titles across the range suggest single through super king availability, though per-model size ranges aren’t itemised on every product page, so check the specific listing before ordering.
Is the Ortho Dream Star the same as the Miracoil Ortho?
No. They’re separate products. The Ortho Dream Star is a MattressOnline-exclusive name for a Miracoil build, while the Miracoil Ortho is sold directly on silentnight.co.uk. Both use open-coil support but at different price points and with different retailer terms.
Where can I buy a Silentnight Miracoil mattress?
Directly from silentnight.co.uk, or through exclusives at Dreams, MattressOnline, Argos, Habitat and Costco, plus MattressNextDay’s Miracoil listings, each carrying slightly different naming and pricing for what is fundamentally the same coil technology.
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