Coolflex Lux Ortho Pocket Single Mattress
The Coolflex Lux Ortho Pocket is an extra firm hybrid mattress, which means it pairs pocket springs with foam for a supportive, no-sink feel.
- Genuinely firm feel
- Minimises partner disturbance
- Pressure relief without deep sink
£199
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Coolflex Lux Ortho Pocket Mattress
More available sizes
Mattress details
Mattress
Coolflex Lux Ortho Pocket Mattress
Size
Firmness
Extra Firm
Construction
Foam
Pocket Spring
Hybrid
Rolled
Orthopaedic
Depth (cm)
24
Layers
3
Layer Details
Knitted Cover
A soft knitted cover that breathes well, which means heat can escape rather than build up around you. It helps keep you at an even temperature all night.
Reflex Foam
A soft layer of Reflex Foam that contours to the shape of your body, which means personalised support and pressure relief where you need it. It gives a comfortable surface without undermining the firm feel beneath.
Pocket Springs
Individual pocket springs work independently, reacting to changes in your weight and movement. In practice that means responsive support at your pressure points and less motion transfer across the bed.
Layer details from mattressnextday.co.uk product page, September 2026.
Key benefits
- Leaves room to live around it: At 90cm wide, the UK single keeps floor space free in a child's room where the bed competes with a desk, wardrobe and toy storage.
- Extra firm support for growing sleepers: The pocket springs and Reflex Foam give teens and heavier solo sleepers a flat, supportive surface, although lightweight side sleepers may find it a little unyielding.
- Suits raised and compact frames: At 24cm deep, it sits sensibly within the guard rails of most bunk and mid-sleeper frames, though you should check your frame's maximum mattress depth first.
- A practical guest room choice: Two UK singles fit where one double dominates, so a spare room that doubles as an office can still host visitors without losing the desk.
- Cheap, easy bedding: Standard single sheets and a single duvet fit, which means replacing bedding costs less than for any larger size.
This size suits you if...
You're buying for one sleeper, a child, a teenager or a single adult, who prefers a properly firm bed or sleeps on their back or front. It also fits if you're furnishing a guest room or a spare room that works as an office by day, or if the bedroom is small enough that a wider mattress would swallow the floor.
Consider another size if...
You share the bed, or you're a single adult who spreads out and feels hemmed in at 3ft wide. We'd recommend the UK small double instead: it's 30cm wider, the same length, and we suggest allowing at least 2.4m x 2.8m for it.
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FAQ's
Is the Coolflex Lux Ortho Pocket UK single good for a child's room?
Yes, with one caveat. The 90 x 190cm footprint is the standard for children's rooms, leaving space for a desk and storage, and the hypoallergenic build helps young allergy sufferers. The extra firm feel suits children and teens who sleep on their back or front, but a very light child who sleeps on their side may find it hard going.
Will the Coolflex Lux Ortho Pocket UK single fit a bunk or mid sleeper?
The 90 x 190cm size matches standard UK bunk and mid-sleeper frames. The mattress is 24cm deep, so check your frame's maximum recommended depth before buying: safety guidance for raised beds usually requires the mattress to sit below the guard rail. On most modern frames it will be fine, but older bunks can have lower rails.
What room size do I need for a UK single mattress?
We suggest allowing at least 2.1m x 2.8m of floor space, which gives you room to walk alongside the bed and open drawers or doors. That makes the UK single a sensible pick for box rooms, loft conversions with a narrow usable footprint, and spare rooms where the bed shares space with a desk.
Should I buy the UK single or size up to the UK small double?
If the bed is for a child, a teen or a snug guest room, the UK single is the practical choice. A single adult who wants more stretching room could size up: the UK single is 30cm narrower than the UK small double, and the two are the same length. Allow at least 2.4m x 2.8m for the UK small double.
How do I get the best price on the Coolflex Lux Ortho Pocket in a UK single?
Compare the retailers listed on this page. The prices shown here are updated as retailers change them, so what you see reflects current pricing rather than a snapshot. Smaller sizes like the UK single sit at the lower end of this model's range, and stock and offers can shift quickly, so check back before you commit.