Wentworth Mercer Natural Pocket 1000 Super King Mattress
The Wentworth Mercer Natural Pocket 1000 is a medium feel pocket spring mattress, handcrafted in the UK.
- Quick bounce-back when you move
- Follows your body shape
- Airflow helps if you sleep warm
£634
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Wentworth Mercer Natural Pocket 1000 Mattress
More available sizes
Mattress details
Mattress
Wentworth Mercer Natural Pocket 1000 Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Wool
Natural
Depth (cm)
29
Layers
3
Layer Details
Comfort fillings
Two layers combining polyester and cotton sit at the sleep surface, which means a soft, cushioned first impression when you lie down. The cotton adds a touch of natural breathability to the synthetic fill.
Soft white fibres
Beneath the comfort layers, two layers of soft white fibres help air circulate through the mattress. This works to move heat and moisture away from you, so the bed feels fresher for longer.
Pocket springs
1000 pocket springs form the core of the mattress, each moving independently to follow the shape of your body. Their curved design is intended to react quickly and spring back, so the mattress shouldn't feel dead or unresponsive when you change position.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- 90cm each for two: With 90cm each when two of you share, you each get the width of a UK single, which means a stray elbow or knee rarely reaches the other side.
- 15cm more each than a UK king: Stepping up from the UK king adds 15cm of space per person, which gives a restless sleeper room to shift position without crowding a partner.
- Springs and distance together: Independent pocket springs limit how far movement travels, and the extra width puts more mattress between you, so a fidgety partner should be easier to sleep through.
- Room when the household piles in: When a child wanders in at 3am or the dog settles across the foot of the bed, everyone keeps a usable share rather than someone clinging to the edge.
- In proportion in a large room: In a period house or a big master bedroom, a UK super king looks right for the space, where a UK king can leave the room feeling slightly underfilled.
This size suits you if...
You share with a partner who tosses and turns, or your children or dog regularly end up in bed with you, and your bedroom comfortably clears our suggested minimum of 3m x 2.9m.
Consider another size if...
Your bedroom falls short of 3m x 2.9m, or doors and wardrobes would struggle to open around the bed. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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FAQ's
How much space does each person get on a UK super king Wentworth Mercer Natural Pocket 1000?
You each get 90cm when two of you share. That is 15cm more each than the UK king and 22.5cm more each than the UK double, so a UK super king is the size to choose if you want to sleep without brushing against a partner.
Is a UK super king Natural Pocket 1000 big enough for a family with young children?
For occasional visits, yes. At 180cm wide, a small child can fit between two adults without anyone losing their side entirely. If children join you most nights, the extra width over a UK king makes a real difference to how rested the adults feel the next morning.
UK super king or UK king for a restless partner?
If your partner's movement regularly wakes you, choose the UK super king. The pocket springs help limit motion, but distance helps too, and you gain 15cm each over the UK king. The two sizes are the same length, so width is the only thing you are paying for in space.
What should I check before ordering the Natural Pocket 1000 in a UK super king?
Measure the room first. We suggest at least 3m x 2.9m, with around 3.5m x 3.2m feeling comfortable. Then check that the door swings clear of the bed and that the mattress can get round any tight landing turns. Budget for super king sheets and a 260 x 220cm duvet too.
How does the Wentworth Mercer Natural Pocket 1000 UK super king compare with the UK double?
The UK super king is 45cm wider and 10cm longer than the UK double, and gives 22.5cm more each when two of you share. The UK double suits smaller rooms, and we suggest at least 2.6m x 2.8m for it.