Vispring Realm Bedstead Super King Mattress
The Vispring Realm Bedstead Mattress is a handmade pocket spring mattress built around 1,326 hand-nested vanadium steel pocket springs in a calico construction, layered with British fleece wool, cotton and bamboo.
- Wool, cotton & bamboo breathe well
- Minimises partner disturbance
- Choose from four tensions
£3,269
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Vispring Realm Bedstead Mattress
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Mattress details
Mattress
Vispring Realm Bedstead Mattress
Size
Firmness
Medium
Construction
Pocket Spring
Wool
Natural
Depth (cm)
21
Layers
5
Layer Details
Upholstery - Top layer
Bonded British fleece wool and cotton sit directly beneath you. Wool breathes and wicks moisture, which means a cooler, drier feel through the night than foam typically gives.
Upholstery - Middle layer
A layer of British fleece wool adds soft, natural cushioning. It helps regulate temperature while giving a little give before you reach the springs.
Upholstery - Layer
Bamboo brings a naturally breathable, moisture-managing quality to the fillings. It works alongside the wool to keep the sleep surface fresh.
Upholstery - Bottom layer
Layered British fleece wool and cotton cushion the transition to the spring unit. This means you feel the support of the springs without any harshness.
Spring system
A hand-nested calico pocket spring construction with 1,326 vanadium steel springs arranged in a single layer. Each spring moves independently, which means support that follows your shape and less disturbance from a partner shifting position.
Layer details from vispring.com product page, September 2026.
Key benefits
- 90cm each for two: With 90cm each when sharing, the UK super king gives you 15cm more per person than the UK king, which means a restless partner's turns reach you far less.
- Room for a small visitor: When a child climbs in after a bad dream, 180cm of width means the adults keep a usable share instead of clinging to the edges.
- Space for a dog as well: If a large dog sleeps on the bed as a matter of routine, the UK super king leaves enough width that the dog's spot doesn't come straight out of yours.
- Full 200cm length: At 200cm long, the UK super king is 10cm longer than the UK double, so taller sleepers can stretch out fully.
- In proportion with a grand room: In a period bedroom or large master where a UK king would look a little lost, the UK super king sits in proportion with the space and a traditional bedstead.
This size suits you if...
You share the bed with a partner who moves a lot, or with children or a dog who regularly join you, and your bedroom comfortably clears our suggested minimum of 3m x 2.9m.
Consider another size if...
Your bedroom is smaller than 3m x 2.9m, or the door swing leaves little clearance 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
Is a Vispring super king better than a king for a restless partner?
It gives you noticeably more distance. The UK super king offers 90cm each for two sharing, while the UK king gives 75cm each, so you gain 15cm per person. The pocket springs already move independently, but that extra width means a partner's turns have further to travel before you feel them.
Is a UK super king big enough for two adults and a child?
For an occasional visitor, usually yes. At 180cm wide, a small child tucked in the middle still leaves each adult a workable strip rather than the very edge. If children join you most nights, bear in mind the UK super king is the largest size UK retailers stock as standard, so there is nowhere bigger to move up to.
Will a UK super king fit in a loft conversion bedroom?
Often, but the sloping ceiling usually decides which wall the bed goes against. We suggest at least 3m x 2.9m of floor, measured where you have standing height to walk round the bed rather than wall to wall. Check door swing and landing turns too, because a 180 x 200cm mattress is a large thing to carry up.
How much bigger is a UK super king than a UK double?
The UK super king is 45cm wider and 10cm longer than the UK double, which gives 22.5cm more space each for two people sharing. The room ask rises too: we suggest at least 2.6m x 2.8m for a UK double, against 3m x 2.9m for the UK super king, with around 3.5m x 3.2m feeling right.
What size bedstead does a Vispring super king need?
You need a bedstead built for a UK super king, which is 180 x 200cm or 6ft x 6ft 6in. This mattress is designed to sit on a bedstead rather than a divan. It is 21cm deep with around 6cm of doming, so check the frame's side rails and headboard height against that before ordering.