Wentworth Mercer Natural Pocket 2000 Ortho Mattress
The Wentworth Mercer Natural Pocket 2000 Ortho is an extra firm pocket spring mattress, handcrafted in the UK.
- Extra-firm with comfort on top
- Less roll-together than open coils
- Cotton wicks moisture for hot sleepers
£559
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The Wentworth Mercer Natural Pocket 2000 Ortho has a core of 2000 steel pocket springs beneath layers of cotton, polyester and soft white fibres, which means each spring moves independently to support different parts of your body while the natural fillings keep the surface breathable. At 29cm deep it has a reasonably substantial build. It comes in UK Single, Double, King and Super King, and carries a 5 year guarantee as listed by Mattress Online. If you want a genuinely firm feel with natural touches at a mid-range price, it deserves a look, although a few owners find it softer than billed.
Mattress specifications
Firmness
Extra Firm
Type
Pocket Spring
Depth (cm)
29
Number of Layers
3
Trial Period (nights)
100
Warranty (years)
5
Price Range
£559 to £899
Best Sleeping Position(s)
Stomach Sleeping
Certifications
BS 7177
Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
Why should you choose this mattress?
The main draw is that extra firm rating paired with a bit of comfort up top. The 2000 pocket springs adapt to movement individually, which means better weight distribution and less of the roll-together you get with open coil designs. Cotton in the comfort layers wicks moisture away, so hot sleepers get some help too. It conforms to BS7177: 2008 for home use and Wentworth Mercer is a National Bed Federation Approved Brand, which offers some reassurance on safety and standards. Buying through Mattress Online, you get a 100-night trial and free delivery to most locations, with room of choice delivery and mattress recycling available for an extra charge. Note those terms are the retailer's own, so check before buying elsewhere.
Key features & layer details
Cotton and Polyester Comfort Layer
Two layers blending cotton and polyester give a cushioned surface feel. The cotton naturally wicks away moisture while the polyester improves airflow, which means less heat building up as you sleep.
Soft White Fibres
Two layers of soft white fibres sit beneath the top layer. These are resilient and cushioning, which helps the comfortable feel last longer.
Pocket Spring Core
A core of 2000 durable steel pocket springs, each encased in its own cloth pocket. Because the springs move independently, support adjusts to each part of your body rather than the mattress compressing as one block.
Layer details from mattressonline.co.uk product page, September 2026.
Best suited for?
Back sleepers
The extra firm rating and 2000 steel pocket springs give a level, supportive surface, which suits anyone who likes to lie flat on their back.
Front sleepers
Extra firm feel keeps the surface flat beneath you, which means your hips are less likely to sink down while you lie on your front.
Warm sleepers
Cotton in the comfort layers wicks moisture away while the polyester improves airflow, so less heat builds up as you sleep.
Couples
Each of the 2000 pocket springs moves independently, which means less roll-together than open coil designs and the King and Super King sizes give room to spread out.
Heavier sleepers
A core of 2000 durable steel pocket springs beneath a 29cm build gives firm, sturdy support that resists compressing as one block under more weight.
If you prefer a soft or plush sleeping surface, this is not the mattress for you. Lightweight side sleepers may find an extra firm feel puts pressure on hips and shoulders. And if you want a guaranteed extra firm feel, be aware some owners describe it as closer to medium firm.
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.
Wentworth Mercer Natural Pocket 2000 Ortho Mattress
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FAQ's
How firm is the Wentworth Mercer Natural Pocket 2000 Ortho mattress?
It is rated Extra Firm. That said, owner feedback is mixed: some confirm a genuinely firm feel, while others say it feels closer to medium firm. If you need an unmistakably hard surface, factor that in and make use of the retailer's trial period.
Does the Wentworth Mercer Natural Pocket 2000 come with a trial?
Mattress Online lists a 100-night trial with this mattress. That trial is the retailer's own offer rather than a brand-wide promise, so if you buy from a different shop the terms may differ.
How many springs does the Natural Pocket 2000 Ortho have?
It has 2000 steel pocket springs, each held in its own cloth pocket. This means the springs respond to movement individually, giving more tailored support across your body than a traditional connected spring unit.
What sizes is the Wentworth Mercer Natural Pocket 2000 available in?
It comes in UK Single, UK Double, UK King and UK Super King. The mattress is 29cm deep.
Is there a guarantee on the Wentworth Mercer Natural Pocket 2000?
Yes, a 5 year guarantee is listed by Mattress Online. As this comes from a retailer listing rather than the brand's own site, confirm the guarantee terms with whichever retailer you buy from.
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