Vispring Dartington Firm Mattress
Mattress
Vispring Dartington Firm Mattress
Size
Firmness
Firm
Construction
Depth (cm)
21
Layers
2
Layer Details
- Upholstery. Natural fillings only: bonded and blended British fleece wool and cotton, encased in high-quality ticking for durability and breathability. It is hand-tufted with felt washers, which means the fillings are anchored in place and far less likely to shift or lump over time.
- Springs. A single layer of 1,558 vanadium steel pocket springs, each sewn into a calico pocket and hand-nested rather than glued in rows. That construction lets the springs contour to you individually, so you feel support where you press down and less disturbance from a partner's movement.
Layer details from vispring.com product page, September 2026.
- Real distance from a restless partner: With 90cm each, a partner who tosses and turns is further away, and the independently moving pocket springs soak up much of what still reaches you.
- 15cm more each than the UK king: The UK super king is 30cm wider than the UK king at the same length, which gives each sleeper 15cm more width.
- Space for a small visitor or a dog: When a child wanders in or a large dog settles at your feet, the extra width means nobody ends up clinging to the edge.
- Firm support across a wide surface: The Firm tension comes from the springs, so you get steady support right across the width, with the wool and cotton surface keeping it from feeling hard.
- Cooler for a crowded bed: Wool breathes well, which means less trapped heat on nights when two adults and a child are sharing the same mattress.
- In proportion in a large room: In a spacious master or a high-ceilinged period bedroom, a UK super king fills the space properly where a UK king can look slightly lost.
This size suits you if...
You share with a partner whose movement regularly wakes you, or children and a large dog often 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 is under our suggested 3m x 2.9m, or you mostly sleep alone. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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Is the Vispring Dartington super king big enough for two adults and a child?
It gives two adults 90cm each, which leaves a little slack in the middle for a small child who joins you in the night. It will feel tight with an older child every night, but for occasional visits most families find the UK super king keeps everyone sleeping rather than shuffling for space.
Vispring Dartington king vs super king: how much extra room do you get?
The UK super king is 30cm wider than the UK king, and both are the same length. Shared between two, that means 90cm each on the UK super king against 75cm each on the UK king, so 15cm more per person. You gain width only, not legroom.
Will a Dartington super king fit in a loft conversion bedroom?
Only if the full-height part of the room is large enough. We suggest at least 3m x 2.9m for a UK super king, and in a loft the sloping ceiling usually dictates which wall the headboard goes against. Measure where you can stand upright and walk around the bed, rather than the whole floor area.
Does a wider firm mattress help if my partner moves a lot?
Yes, width does most of the work here. The Dartington's pocket springs move independently, which limits how much movement travels across the bed, and the UK super king adds distance on top, with 90cm each. A very restless partner is far easier to ignore at this width than on a UK king.
What should I check before ordering a Vispring Dartington in UK super king?
Check that doors can swing open past the bed and that the route upstairs has no tight landing turns, since this is a traditional sprung mattress around 21cm deep plus roughly 6cm of doming. Budget for UK super king sheets and a 260 x 220cm duvet too.