Sealy PostureLux Kindra King Size 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
£1,699
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Sealy PostureLux Kindra Mattress
More available sizes
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
- A little more distance between you: At 75cm each, you get 7.5cm more than in a UK double, which means slightly more breathing room when one of you turns over in the small hours.
- Length for a tall partner: The UK king runs to 200cm, or 6ft 6in, so a partner over six foot can stretch out with their feet still on the mattress.
- A top layer that moves with you: Sealy describes the latex comfort layer as adjusting with your movements, so whoever shifts position more often shouldn't feel held in place.
- Sides that hold up: UniKey edge support helps the edges stay firm, which helps on a UK king where each of you tends to sleep nearer your own side.
- One feel for two sleepers: Rated medium, the Kindra suits most back and side sleepers, although a couple where one partner wants a very firm surface may find it a compromise.
This size suits you if...
You share the bed and one of you gets up hours before the other, so the extra space each makes it easier to slip out without disturbing anyone. It also fits if one of you is over six foot and has spent years with your heels at the very end of a UK double.
Consider another size if...
Your bedroom falls short of our suggested minimum of 2.7m x 2.9m once the wardrobes are in. We'd recommend the UK double instead, for which we suggest at least 2.6m x 2.8m.
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FAQ's
How much space does each person get on a Sealy PostureLux Kindra UK king?
Each of you gets 75cm across the 150cm width. That is 7.5cm more each than the UK double gives, a small but real gain if one of you sprawls or you find yourselves bumping elbows.
What size bedroom do I need for a Sealy PostureLux Kindra king size?
We suggest at least 2.7m x 2.9m for the UK king. New build master bedrooms can feel smaller than the plans suggest once wardrobes go in, so measure the floor space you'll actually have left before you compare the retailers listed on this page.
Is a UK king mattress long enough if you're over 6ft?
The UK king is 200cm long, which is 6ft 6in, and 10cm longer than a UK double. For a partner just over six foot, that extra length is often the real reason to upgrade, more so than the width.
Should a couple choose the Kindra in a UK king or a UK super king?
The UK super king gives 90cm each, so the UK king gives 15cm less each at the same length. If restless sleep is the main complaint and your room allows at least 3m x 2.9m, the UK super king is the roomier choice. Otherwise the UK king is the practical middle ground.
What duvet size fits a UK king mattress?
A king duvet measuring 230 x 220cm fits the UK king, along with king size sheets. If you're coming up from a UK double, plan to replace your bedding at the same time, as double sheets won't stretch to 150 x 200cm.