Firmness
Type
Memory Foam
Depth (cm)
18
Number of Layers
2
Trial Period (nights)
Warranty (years)
5
Price Range
£209 to £389
Best Sleeping Position(s)
Certifications
Assessed from the specification published by MattressNextDay, captured September 2026, and from regular price comparison across our UK retail partners.
Value is the main draw here. From £209.00, you get memory foam that responds to your shape, helping to ease pressure points at the hips and shoulders, and a knitted surface that adds a slightly softer, more breathable first impression. The firm rating suits back and front sleepers, and heavier sleepers who tend to sink too far into softer foams. Certifications add reassurance: fire resistant to the BS7177: 2008 standard, NBF-approved manufacturer, made in the UK, plus a 5-year guarantee from Silentnight. Sizes run from UK Single to Super King, with EU sizes too, which is handy if you have a continental bed frame. It is a straightforward, budget-friendly firm foam mattress rather than a luxury one.
Key Features & what's inside
- Soft Knitted Sleep Surface. A soft, breathable knitted cover that adds a touch of comfort at the surface. It takes a little of the edge off the firm feel beneath.
- Memory Foam. Body-moulding memory foam that responds to your shape, which means pressure points at the hips and shoulders get some relief. Expect a contouring, cradled feel rather than bounce.
Layer details from mattressnextday.co.uk product page, September 2026.
Who's it NOT for?
Lightweight side sleepers may find the firm feel a little unforgiving on the shoulder. If you like the springy, easy-to-move-on feel of pocket springs, all-foam contouring probably isn't for you. And at 18cm deep, it may feel shallow if you're used to a taller, more substantial mattress.
Silentnight 3 Zone Memory Foam Mattress
Across 94 reviews on the mattressnextday.co.uk product page, the mattress averages 4.7 out of 5, with customers praising the firm support and memory foam comfort. Pressure relief and spinal alignment come up repeatedly as strengths.
View all mattresses
Is the Silentnight 3 Zone Memory Foam Mattress firm or soft?
It is rated firm. The knitted sleep surface and memory foam layer soften the initial feel slightly, but the underlying support is solid. That suits back and front sleepers well, although lightweight side sleepers may find it a little too firm.
How deep is the Silentnight 3 Zone Memory Foam Mattress?
It is 18cm deep, which is slimmer than many mattresses. That keeps the price down and makes it easier to handle, but it sits lower on the bed frame and feels less plush than deeper models.
Does the Silentnight 3 Zone Memory Foam Mattress have a guarantee?
Yes, it carries a 5-year manufacturer's guarantee from Silentnight, as stated on the mattressnextday.co.uk listing.
What sizes does the Silentnight 3 Zone Memory Foam Mattress come in?
UK Single, Small Double, Double, King and Super King, plus EU Single, Double and King. The EU options are useful if you have a continental bed frame. Prices range from £209 to £389 depending on size.
Does the Silentnight 3 Zone Memory Foam Mattress come with a sleep trial?
No trial period is mentioned on the mattressnextday.co.uk listing, so check returns terms with your chosen retailer before buying. MattressNextDay offers free next day delivery to mainland UK, though some addresses may incur a small fee. Delivery terms are that retailer's own offer.
Couldn't find an answer to your question? Send us a message