Available 
Silentnight Vilana Miracoil Mattress
from £184-£324.
£184-£324
Sizes tracked: Single, Small Double, Double, King Size
Silentnight Mattress
Silentnight Bonnell Mattress review
Silentnight Bonnell Mattress is a budget-friendly firm sprung option with Bonnell/open-coil support, four tracked sizes and retailer reassurance to check before buying.
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Last verified: 2026-10-20
Quick verdict
Silentnight Bonnell Mattress is a straightforward firm sprung mattress for shoppers who want open-coil support without moving into a foam-led feel. With tracked prices from £168 to £234, it sits in a clear budget band, so the key question is whether a firm Bonnell build matches your sleep preference and bed setup. If you want a simple value-first mattress from a known brand, it is worth shortlisting; if you prefer softer comfort or a deeper spec, compare alternatives first.
Available sizes and prices
Silentnight Bonnell Mattress is listed with 4 size options from £164-£228. The visible sizes include Single, Small Double, Double, King Size, so use the table to compare the option that matches the exact size, colour, format or specification you want. Always confirm the final checkout price, delivery charge and stock status on the retailer page.
Key product details
These are the retailer details worth checking first for Silentnight Bonnell Mattress: Brand: Silentnight; Type: Mattress; Sizes tracked: Single, Small Double, Double, King Size; Price range: £164-£228. Treat them as a quick fact sheet, then use the retailer page to verify any installation, warranty, delivery or model-number details before buying.
| Brand | Silentnight |
|---|---|
| Type | Mattress |
| Sizes tracked | Single, Small Double, Double, King Size |
| Price range | £164-£228 |
| Owner rating signal | 4.6 out of 5 shown; review volume needs checking with the retailer |
| Last checked | 2026-10-20 |
Product page evidence
Mattress Online lists Silentnight Bonnell Mattress as firm, with Bonnell/open-coil spring support and soft white fibre comfort layers. The page also shows a 100-night comfort trial and a 5-year guarantee, which add reassurance if you are weighing up a low-cost sprung mattress. Mattress Online also notes that mattress depth can affect bedding, toppers and bed-frame compatibility, so check the current depth figure and your frame clearance before ordering.
Research takeaways
The visible retailer rating is 4.6 out of 5 from 481 reviews, which is a positive sign, but it is still retailer-hosted feedback and comfort remains subjective. Price-wise, the mattress sits below the comparable-product median of £632, so the value case is strong if the firm feel is what you want. The product has 4 tracked variants, matching the median in the comparison set, and that makes the size range practical rather than unusually broad. Overall, this looks like a sensible shortlist for buyers who want a basic firm sprung mattress and are happy to verify the trial terms, depth and stock before checkout.
Buyer trade-offs
The main trade-off is price versus feel: at £168 to £234, Silentnight Bonnell Mattress is cheap compared with many tracked mattresses, but the firm Bonnell construction will not suit every sleeper. The small double was out of stock when checked, so size convenience may depend on restocking, while Single, Double and King Size are the safer options to compare. The 100-night trial does reduce risk, but it is a conditional exchange rather than an unconditional refund, so read the protector and exchange conditions before you buy.
Price and value benchmark
Tracked prices run from £168 for Single up to £234 for King Size, which places Silentnight Bonnell Mattress in a clear budget band. That is far below the comparable-product median of £632, so the mattress looks competitively priced for a branded firm sprung model. Value depends on whether you want the Bonnell/open-coil feel and the reassurance of the 100-night comfort trial and 5-year guarantee; if you are comparing on construction alone, check whether a nearby pocket-sprung or foam-led alternative better matches your comfort preferences.
Specs versus alternatives
Compared with pocket-sprung mattresses, Bonnell/open-coil support usually gives a more traditional sprung feel and a simpler spec to shop by. Silentnight Bonnell Mattress itself is listed from £168 to £234 across Single, Small Double, Double and King Size, while nearby Silentnight Vilana Miracoil Mattress starts higher at £184 and Silentnight Miracoil Cushion Top Mattress starts at £239, so price and construction both matter when you compare. Before deciding, check the mattress depth, your bed-frame clearance and whether your bedding or topper will still fit, because Mattress Online says depth can affect compatibility and the page uses slightly different depth figures.
How to read the review evidence
The 4.6-star signal from 481 reviews is useful context, but it is not the same as independent evidence and it should not be treated as proof that every sleeper will find the same comfort level. Retailer-hosted reviews usually reflect a mix of experiences, and for this model the visible comments include both praise for firm comfort and some discomfort feedback. That makes the rating supportive rather than decisive: use it as a confidence check, not a substitute for comparing firmness, support type and size fit.
Who it suits
This mattress is a good fit for shoppers who want a straightforward sprung mattress, prefer a firm feel and are looking for everyday comfort at a relatively low price. It also suits buyers who want a known-brand option with 4 sizes to choose from, plus retailer reassurance through a comfort trial and guarantee. If you are replacing a basic guest-room or main-bed mattress and do not need a complex build, it is a practical option to compare.
Who should avoid it
If you want a softer mattress, a foam-led feel or a more cushioned top layer, Silentnight Bonnell Mattress is unlikely to be the right starting point. It is also less suitable if you need confirmed depth details before buying, because the page uses slightly different depth figures and frame clearance matters. Shoppers who want unconditional returns rather than a conditional exchange should also look elsewhere.
Comfort and support
Silentnight Bonnell Mattress pairs a firm feel with Bonnell/open-coil spring support and soft white fibre comfort layers, so the overall sensation should be more traditional than foam-led. That usually means a clearer spring response and less contouring than a pocket-sprung or memory-foam mattress, which may suit back or front sleepers who prefer a firmer base; side sleepers who want more cushioning should compare carefully. The best fit still depends on your sleep position and whether you prefer firm support over a softer surface.
Value verdict
On price alone, Silentnight Bonnell Mattress looks strong: £168 to £234 is low for a branded mattress with a 100-night comfort trial and 5-year guarantee. The value case is best when you specifically want a firm open-coil mattress and have checked the final checkout price, delivery cost and size availability. Before paying, confirm the current stock, the exact depth for your chosen size and the trial conditions so the reassurance on offer matches your expectations.
Good alternatives to compare
The closest alternatives to compare with Silentnight Bonnell Mattress include Silentnight Vilana Miracoil Mattress, Silentnight Miracoil Cushion Top Mattress, Silentnight Miracoil Memory Cushion Top Mattress. Use these cards to check whether a nearby model gives you a better price, a more suitable specification or a clearer match for your space and budget.
Available 
Silentnight Miracoil Cushion Top Mattress
from £239-£409.
£239-£409
Sizes tracked: Single, Small Double, Double, King Size
Available 
Silentnight Miracoil Memory Cushion Top Mattress
from £244-£424.
£244-£424
Sizes tracked: Single, Small Double, Double, King Size
Retailer details used
Last checked 2026-10-20. The source list below is included to help you check the details behind the comparison. Always confirm the latest price, delivery cost, stock status and product details with the retailer before buying.
More mattresses to compare
These related guides and reviews can help you compare nearby options before buying.
Questions about this mattress
Is Silentnight Bonnell Mattress worth buying if you want a firm mattress?
It is worth considering if your main priority is a firm, traditional sprung feel at a budget-friendly price. The Bonnell/open-coil construction and soft white fibre comfort layers make it a straightforward option, but the fit still depends on your preferred sleep feel and position.
How does the price vary by size, and is the small double available?
Tracked prices run from £168 for Single to £234 for King Size, with Double also listed at £204. The Small Double was shown as out of stock when checked, so verify current availability and delivery before you rely on that size.
What do the 100-night trial and 5-year guarantee actually mean for buyers?
The 100-night trial is a conditional comfort exchange, not an unconditional refund, and the terms include requirements such as buying a protector with the mattress and meeting the minimum-use period. The 5-year guarantee adds reassurance, but you should still read the retailer and manufacturer conditions before purchase.
Does the mattress depth matter for bed frames, toppers and bedding?
Yes. Mattress Online says depth can affect bedding, toppers and bed-frame compatibility, and the page shows slightly different depth figures, so check the exact depth for your chosen size before buying. That is especially important if your frame has low clearance or you already use a topper.
Is the 4.6-star rating enough to trust the mattress quality?
It is a helpful sign, especially with 481 reviews showing broad interest, but it should be treated as supporting context rather than proof. Comfort is subjective, the reviews are retailer-hosted, and you should still compare firmness, support type, size availability and trial terms before deciding.