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)
Certifications
Assessed from the specification published by Mattress Online, captured September 2026, and from regular price comparison across our UK retail partners.
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 available for £20.00 and mattress recycling for £35.00. Note those terms are the retailer's own, so check before buying elsewhere.
Key Features & what's inside
- 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.
Who's it NOT for?
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.
Wentworth Mercer Natural Pocket 2000 Ortho Mattress
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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, priced from £559 to £899 depending on size. 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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