Wentworth Mercer Natural Pocket 2000 Mattress
Mattress
Wentworth Mercer Natural Pocket 2000 Mattress
Size
Firmness
Firm
Construction
Depth (cm)
29
Layers
4
Layer Details
- Cotton comfort layer. Cotton fibres naturally wick away moisture, which means a drier, fresher feel through the night. This is the layer closest to you.
- Polyester comfort layer. Polyester fibres encourage airflow to move heat and moisture away from your body. Helpful if you're a warm sleeper.
- Soft white fibres. Two layers of soft white fibres provide cushioned comfort while helping the mattress retain its shape. They also add durability, so the surface should stay consistent for longer.
- Pocket springs support system. A core of 2,000 sturdy steel springs, each encased in its own pocket, responds individually to motion and pressure. In practice, that means personalised support and less disturbance when a partner moves.
Layer details from mattressonline.co.uk product page, September 2026.
- Distance from a restless partner: With 90cm each and 2,000 springs that react individually, a partner who turns over repeatedly is further away and less likely to shift your side of the bed.
- Space when the household joins in: The UK super king is 30cm wider than the UK king, so a child who wanders in overnight can settle between you without anyone clinging to the edge.
- Room for a large dog: If a big dog sleeps on the bed as routine, the extra width lets it stretch out without pinning your legs, and the firm surface stays level under its weight.
- Proportion in a big bedroom: In a period property or a large master bedroom, a UK king can look slightly lost, while 6ft x 6ft 6in fills the wall more comfortably.
- A cooler shared bed: The cotton and polyester comfort layers help move heat and moisture away, and more space between two sleepers means less shared body warmth.
This size suits you if...
You share with a partner whose tossing and turning wakes you, your children or a large dog regularly end up in the bed by morning, and your bedroom meets our suggested minimum of 3m x 2.9m.
Consider another size if...
Your bedroom is smaller than 3m x 2.9m, or you rarely have extra company in the bed. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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Is the Wentworth Mercer Natural Pocket 2000 super king big enough for a couple and a child?
For a small child joining you now and then, yes. At 180 x 200cm, the UK super king gives 90cm each for two people sharing, the most of any size this mattress comes in, so a child who climbs in overnight has space between you. If it happens most nights with an older child, expect it to feel a little snug by morning.
Super king vs king: how much extra space do you get each?
The UK super king gives you 15cm more each than the UK king: 90cm per person against 75cm. The two sizes are the same length, so the whole difference is width, with the UK super king 30cm wider. The room needed grows too. We suggest at least 3m x 2.9m for the UK super king and 2.7m x 2.9m for the UK king.
Will a restless partner disturb me on a Wentworth Mercer super king?
Much less than on a smaller size. You each get 90cm, so a partner who turns over a lot is physically further away. The 2,000 pocket springs also respond individually, which means movement on their side travels less across to yours. Distance does most of the work here, and the UK super king gives you the most of it.
Can I fit a UK super king mattress in a loft conversion bedroom?
Often, but measure first. We suggest at least 3m x 2.9m, with around 3.5m x 3.2m feeling right. In a loft conversion the sloping ceiling usually decides which wall the bed goes against, so check you can sit up at the headboard end. Measure the door swing and the tightest landing turn before ordering a mattress this wide.
Is it worth upgrading from a UK double to the Wentworth Mercer super king?
If you share every night, it is a big change. The UK double gives 67.5cm each, and the UK super king gives 22.5cm more each, plus 10cm more length. Weigh it against the room and bedding: we suggest at least 2.6m x 2.8m for the UK double, and the UK super king needs super king sheets and a 260 x 220cm duvet.