Sealy PostureLux Kindra Single 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
£1,299
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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
- Leaves room for everything else: At 3ft x 6ft 3in, the UK single sits against one wall and still leaves floor for a wardrobe, a desk and somewhere to play.
- A balanced feel for growing bodies: It's rated medium, which means a child or teenager gets some give at the shoulders without sinking into the bed as they get heavier.
- Pressure relief for side sleepers: The latex comfort layer adjusts as you move, so a lighter sleeper on their side shouldn't feel stuck in one spot through the night.
- Firmer edges on a narrow bed: UniKey edge support helps the sides hold up, which matters more on a UK single, where a restless sleeper spends more time near the edge.
- Easier for allergy-prone children: The Allergy UK certified ProShield barrier and SilverFresh woven cover suit a child's room where dust and allergens are already a worry.
This size suits you if...
You sleep alone and want a medium hybrid in a compact room, you're buying for a child or teenager who has outgrown a cheaper foam mattress, or you're setting up a spare room or study that needs a proper guest bed on a small footprint.
Consider another size if...
Two people will regularly share the bed. We'd recommend the UK double instead, which gives 67.5cm each; allow at least 2.6m x 2.8m for it.
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FAQ's
Will the Sealy PostureLux Kindra UK single fit a bunk bed or mid sleeper?
Possibly, but measure first. The Kindra is 30cm deep, and many raised frames set a maximum mattress depth so the guardrail stays high enough above the sleeper. Check the bunk, cabin or mid sleeper maker's guidance against that 30cm figure before buying, as a mattress that is too tall reduces the protection on the top bunk.
What size bedroom do I need for a UK single Sealy Kindra?
We suggest at least 2.1m x 2.8m of floor space for a UK single. That leaves room to get in and out of bed and to open a wardrobe. In a child's room shared by siblings, plan for two beds and a clear walkway between them rather than measuring for one.
Is a UK single Sealy PostureLux Kindra long enough for a teenager or adult?
The UK single is 190cm long, the standard UK length for a single bed. A very tall teenager or adult may find their feet near the end. The UK king is 10cm longer, though it is also much wider and needs at least 2.7m x 2.9m of floor space.
What bedding fits the Sealy Kindra single?
A standard single duvet (135 x 200cm) and single sheets fit the 90 x 190cm surface. The mattress is 30cm deep, though, so look for a fitted sheet sold as deep or extra deep. A shallow fitted sheet tends to ping off the corners of a taller mattress.
Can two people share a Sealy PostureLux Kindra in a UK single?
Not comfortably every night. At 90cm wide, the UK single is designed for one person. For a couple, the UK double is 45cm wider and gives 67.5cm each. We suggest at least 2.6m x 2.8m of floor space for the UK double.