Wentworth Mercer Natural Pocket 2000 Ortho Mattress
Mattress
Wentworth Mercer Natural Pocket 2000 Ortho Mattress
Size
Firmness
Extra Firm
Construction
Depth (cm)
29
Layers
3
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.
- A single's width each: At 180cm across, the UK super king matches two 90cm singles side by side, which means each of you gets a full personal sleeping space.
- Distance from a restless partner: The extra 30cm over the UK king puts real space between you, and the 2000 independently moving springs help keep a partner's turning on their own side.
- Room when the family piles in: If children or a large dog regularly join you, the UK super king leaves the adults a usable share rather than a thin strip along the edge.
- In proportion with a big bedroom: In a period property or a generous master bedroom, a UK king can look slightly lost, while 6ft x 6ft 6in fills the space more comfortably.
- One trade-off on length: The UK super king is the same length as the UK king, so you gain width only; tall sleepers get no extra legroom by sizing up.
This size suits you if...
You share with a partner whose tossing and turning wakes you on a smaller bed, or your bed routinely hosts a child or dog as well as two adults, and your room comfortably clears our suggested 3m x 2.9m.
Consider another size if...
Your bedroom falls short of our suggested 3m x 2.9m, or a 180cm width would crowd your furniture. We'd recommend the UK king instead, for which we suggest at least 2.7m x 2.9m.
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How much more room does the Natural Pocket 2000 Ortho super king give than the king?
The UK super king is 30cm wider than the UK king, and both are the same length. When two of you share, that gives 90cm each on the UK super king against 75cm each on the UK king, so you gain 15cm per person across the width only.
Is a UK super king enough for two adults and a child on this mattress?
It is the most practical mainstream size for it. Two adults start with 90cm each, so a small child tucked between you takes space from a generous share rather than a tight one. The extra firm feel is the same in every size, so the gain here comes from width, not from any change in comfort.
Does the super king size help if my partner is a restless sleeper?
Yes, distance does most of the work. You get 22.5cm more each than on a UK double and 15cm more each than on a UK king. On top of that, the 2000 pocket springs move independently, which means a partner turning over is less likely to roll you towards the middle.
Will a Wentworth Mercer super king feel too big for my bedroom?
We suggest at least 3m x 2.9m for a UK super king, with around 3.5m x 3.2m feeling right once bedside tables and a wardrobe are in. In a loft conversion, measure the full-height wall first, because a sloping ceiling often decides where a 180cm bed can go.
Is the UK super king a good size if a large dog sleeps on the bed?
It gives you the best chance of everyone keeping a proper share, since two adults start with 90cm each before the dog claims a corner. Do budget for super king sheets and a 260 x 220cm duvet, as bedding at this size costs more to replace when pets are involved.