Sealy PostureLux Wilton Single Mattress
The Sealy PostureLux Wilton Mattress combines a latex comfort layer with a firm pocket spring core, which means you get quick pressure relief on top of the firm, supportive feel you'd expect.
- Firm feel for back sleepers
- Latex layer eases pressure
- Larger usable sleep surface
£1,199
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Sealy PostureLux Wilton Mattress
More available sizes
Mattress details
Mattress
Sealy PostureLux Wilton Mattress
Size
Firmness
Firm
Construction
Foam
Latex
Pocket Spring
Depth (cm)
29
Layers
2
Layer Details
Latex comfort layer
A latex layer that moves with you, which means instant pressure relief while the firm feel stays underneath.
Sealy firm foam layer
A double layer of Sealy's firm premium foam that completes the comfort stack, which means a steady, supportive feel above the springs.
Layer details from crushedvelvetbedstore.co.uk product page, November 2026.
Key benefits
- Leaves room for the rest of the furniture: At 90cm wide, the UK single leaves floor space for a desk and wardrobe in a small child's room, so the bed isn't squeezing out everything else.
- Two can share a guest room: Two UK singles side by side give visiting friends or siblings a bed each, which suits guests who would rather not share.
- More usable width at the edges: Sealy's UniKey edge system gives a larger usable sleep surface, which means you can sleep near the side of a UK single without feeling you're about to roll off.
- Firm support for a growing back: The pocket springs give a firm, flat base with a latex layer that eases pressure on top, which suits teenagers who mostly sleep on their backs.
- Fits under a sloping ceiling: In a loft conversion, the narrow UK single footprint can tuck along the low side of the room where a wider bed would block the walkway.
This size suits you if...
You sleep alone and prefer a firm, supportive feel, or you're furnishing a child's or teenager's room where floor space is tight. It also suits you if your spare room has to hold a desk as well as a bed, or you want two matching beds for guests.
Consider another size if...
You share the bed, or you sprawl and already feel cramped on 90cm. We'd recommend the UK double instead, which is 45cm wider; we suggest at least 2.6m x 2.8m for the UK double.
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FAQ's
Will the Sealy PostureLux Wilton UK single fit a bunk bed or mid sleeper?
Possibly, but measure first. The mattress is 29cm deep, and raised frames often set a maximum mattress depth so the guard rail stays high enough above the sleeper. Check the frame maker's stated limit before buying; if 29cm is over it, choose a shallower mattress for the top bunk.
Is a firm UK single mattress suitable for a child or teenager?
For a child who sleeps on their back, yes, the firm springs keep the spine well supported. Lighter children who sleep on their side may find it a little firm at the shoulders and hips, although the latex layer on top does soften the first contact.
What size bedroom do I need for a Sealy PostureLux Wilton UK single?
We suggest allowing at least 2.1m x 2.8m. That leaves space to get in and out comfortably and open a wardrobe door, so even a box room can usually take it. If you're fitting two UK singles for siblings, measure for both beds plus a walkway between them.
How big is a UK single mattress in feet and inches?
A UK single measures 3ft x 6ft 3in, which is 90 x 190cm. That matches the standard UK single size, so it should suit a UK single bed frame. Standard single sheets and a single duvet fit it too.
Is a UK single wide enough for an adult to sleep on every night?
For one adult who sleeps fairly still, yes, and the UniKey edge system means more of the 90cm is usable. If you turn a lot or sleep starfish-style, the UK double is 45cm wider and the same length; we suggest at least 2.6m x 2.8m for the UK double.