Last seen from £249 at Mattress Man on 10th November 2026
Silentnight Memory 3 Sleep Mattress
The Silentnight Memory 3 Sleep Mattress is a memory foam mattress from one of Britain's best-known bed brands.
- Medium feel for most sleepers
- Memory foam softens pressure points
- Fits UK & EU bed frames
The Silentnight Memory 3 uses memory foam that moulds to your body as it warms, which means pressure points like hips and shoulders get a slightly softer landing than they would on a traditional sprung mattress. It comes in seven sizes, covering UK Single through Super King as well as EU sizes, which is handy if you have a continental bed frame. Detailed construction information is thin on the ground for this model, so if you like to know exactly what's inside your mattress before buying, that's a limitation to weigh up.
Mattress specifications
Firmness
Medium
Type
Memory Foam
Depth (cm)
Number of Layers
2
Trial Period (nights)
60
Warranty (years)
Price Range
Best Sleeping Position(s)
Side Sleeping
Back Sleeping
Combination Sleeping
Certifications
Assessed from the specification published by Mattress Man, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
Price is the strongest argument here. This sits at the affordable end for a memory foam mattress from a major brand, and the range keeps even larger sizes within reach. Across 215 verified ratings on mattressman.co.uk, it holds an average of 4.6 out of 5, which suggests most owners are happy with what arrives. If you buy through Mattressman, that retailer lists free next day delivery and a 60-night trial, so you can sleep on it at home before committing fully. Do note those terms are Mattressman's own offer rather than Silentnight's, so check the details wherever you choose to buy.
Key features & layer details
Foam layer (top)
The first of two foam layers in an 18 cm mattress. Together they give the medium feel, with memory foam that softens as it warms and gives your hips and shoulders a gentler landing.
Foam layer (base)
The second foam layer sits beneath the first. It is part of an all-foam build, so you get a steady, sprung-free feel rather than the bounce of a pocket spring mattress.
Layer details from mattressman.co.uk and robertdyas.co.uk product pages, October 2026.
Best suited for?
Budget buyers
The copy places it at the affordable end for a memory foam mattress from a major brand, with larger sizes still kept within reach.
Side sleepers
Memory foam that moulds as it warms gives hips and shoulders a slightly softer landing than a traditional sprung mattress would.
European bed frames
Seven sizes include EU options alongside UK Single through Super King, so a continental frame should not leave you hunting for a fit.
Couples
Sizes run up to Super King, and the affordable pricing across the range means a larger bed for two stays within reach.
Combination sleepers
A 60-night trial through Mattressman lets you sleep on it at home and see how the foam suits every position you move through.
If you want full transparency on foam depths, firmness rating or certifications, the available product information doesn't provide them, which may frustrate a detail-focused buyer. And if you prefer the springy, on-top-of-the-bed feel of a pocket sprung mattress, an all-foam design like this probably isn't for you.
Save on an earlier or ex-display model
Some retailers still sell the earlier version of this mattress, or ex-display and returned stock at a lower price. These are the sizes where it costs less than the current model's best price.
Silentnight Memory 3 Sleep Mattress
Last seen for £255 at Mattress Man on 10th November 2026
Last seen for £335 at Mattress Man on 10th November 2026
Last seen for £395 at Mattress Man on 10th November 2026
Last seen for £449 at Mattress Man on 10th November 2026
Last seen for £249 at Mattress Man on 10th November 2026
Last seen for £345 at Mattress Man on 10th November 2026
Last seen for £395 at Mattress Man on 10th November 2026
Select a comparison article below or choose to compare this mattress side by side with up to 2 other mattresses.
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FAQ's
How much does the Silentnight Memory 3 Sleep Mattress cost?
It depends on the size you choose, and the price table on this page shows the current price for each size. It sits at the budget-friendly end for a branded memory foam mattress.
What sizes does the Silentnight Memory 3 come in?
Seven sizes are available: UK Single, UK Double, UK King and UK Super King, plus EU Single, EU Double and EU King. The EU options are useful if you have a continental-sized bed frame, which many UK retailers don't cater for.
Does the Silentnight Memory 3 come with a sleep trial?
Mattressman lists a 60-night trial with this mattress. That trial is Mattressman's own offer rather than a Silentnight guarantee, so if you buy elsewhere the terms may differ. Always confirm the trial and returns policy with your chosen retailer before ordering.
Is delivery free on the Silentnight Memory 3 mattress?
Mattressman offers free next day delivery on this mattress. As with the trial, that's the retailer's own service rather than a manufacturer promise, so delivery speed and cost could vary if you purchase from a different shop.
Is the Silentnight Memory 3 any good?
Across 215 owner ratings on mattressman.co.uk, it averages 4.6 out of 5, which is a strong score for a mattress at an affordable starting price. Detailed written feedback is limited, though, so treat the number as a broad signal rather than a full picture.
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