Sealy PostureLux Kindra Super King Mattress
The Sealy PostureLux Kindra Mattress combines a latex comfort layer with twice-tempered PostureTech springs, which means you get pressure relief that adapts as you move, on a medium feel with firm support underneath.
- Pressure relief that moves with you
- Allergy UK certified allergen barrier
- Handmade in the UK
£1,899
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Sealy PostureLux Kindra Mattress
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Mattress details
Mattress
Sealy PostureLux Kindra Mattress
Size
Firmness
Medium
Construction
Foam
Latex
Depth (cm)
30
Layers
4
Layer Details
Latex comfort layer
A latex layer that gives pressure relief adjusting with your movements, so the surface follows you as you shift position.
Sealy Premium Medium Foam
Sealy premium foam combined with latex to create the medium feel, which gives a balanced, not-too-soft surface.
Sealy Premium Firm Foam
A second Sealy premium foam layer, in firm, completing the comfort stack. It adds a firmer base so you don't sink too far.
PostureTech Core Support Plus springs
High-profile, 6-turn springs, twice tempered, forming the core support. They give the mattress its underlying support and structure.
Layer details from crushedvelvetbedstore.co.uk product page, November 2026.
Key benefits
- Distance from a restless partner: With 90cm each, which is 15cm more per person than the UK king, someone who turns over constantly has room to move without bumping into you.
- Space when children wander in: A small child arriving in the night can settle in the middle, and the UniKey edge support should help the two adults use the outer edges rather than cling on.
- Extra width, no extra length: The UK super king and UK king share the same 200cm length, so the added width runs across the room and leaves the space at the foot of the bed unchanged.
- Room for a large dog: If a big dog sleeps on the bed every night, 180cm of width lets it stretch out at your feet without pushing either of you towards the edge.
- A medium feel on both sides: The medium rating gives a balanced surface that suits most back and side sleepers on either side, although anyone wanting a very firm or very plush bed should look elsewhere.
- Plan for rotating it: The Kindra can't be flipped, only rotated, and turning a mattress of 180 x 200cm head to foot is far easier with two people.
This size suits you if...
You share with a partner who tosses and turns, a child or a large dog regularly joins you overnight, 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 a tight landing turn worries you. We'd recommend the UK king instead, which needs at least 2.7m x 2.9m.
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FAQ's
How much room do I need for a Sealy PostureLux Kindra super king?
We suggest at least 3m x 2.9m, with around 3.5m x 3.2m feeling more comfortable once bedside tables go in. In a loft conversion, the sloping ceiling usually decides which wall the bed can sit against, so check headroom on both sides. Measure door swing and landing turns too, then compare the retailers listed on this page.
Is the Sealy Kindra UK super king worth it over the UK king?
If space between sleepers is your main concern, yes. The UK super king is 30cm wider than the UK king and the same length, giving 90cm each against 75cm. The catch is the room: we suggest at least 2.7m x 2.9m for the UK king, compared with 3m x 2.9m for the UK super king.
Is a UK super king big enough for two adults and a child?
For occasional night visits, generally yes. Two adults get 90cm each, so a small child tucked in the middle still leaves everyone a reasonable share. The UniKey edge support helps the outer sleepers use the sides of the mattress. If a child sleeps in with you every night as they grow, things will feel snugger.
What size duvet fits a Sealy Kindra super king?
A 260 x 220cm duvet fits, along with super king sheets. As the Kindra is 30cm deep, check that any fitted sheet you buy is made for a mattress of that depth. Super king bedding costs more than king bedding, so include it in your budget alongside the mattress.
How big is the Sealy PostureLux Kindra super king in feet?
It measures 6ft x 6ft 6in, which is 180 x 200cm. That's a full 6ft of width, the same as two 90cm singles side by side, and the same 6ft 6in length as a UK king. Taller sleepers get the same length as on a UK king, with the extra space going into width.