Relyon Orthofirm Deluxe 800 Pocket Mattress
Mattress
Relyon Orthofirm Deluxe 800 Pocket Mattress
Size
Firmness
Firm
Construction
Depth (cm)
23
Layers
4
Layer Details
- Damask cover. A finely woven, durable fabric that feels soft to the touch and doesn't retain heat. That means a cooler surface than many synthetic covers, and one built to last.
- Dual density white fibres. This layer offers a comforting embrace while reinforcing the firm feel, which means a little softness at the surface without undermining the support beneath.
- Soft white fibres. Densely packed fibres that support the spring unit and increase the firm feel. In practice, this is what keeps the mattress feeling stable and consistent edge to edge.
- Pocket springs. 800 pocket springs, each in its own fabric pocket, so they move independently. You'll feel more responsive, localised support and less disturbance from a partner's movement.
Layer details from mattressonline.co.uk product page, September 2026.
- Fits the smallest bedrooms: At 90cm wide it leaves floor space free for a desk, wardrobe or toy storage, which matters when the bed is competing for every inch.
- Slim enough for raised frames: The 22.5cm depth sits comfortably within most bunk, cabin and mid-sleeper guard rails, though it's sensible to check your frame's maximum before ordering.
- Firm support at any age: The 800 pocket springs and dense fibre layers give solid, even support, a feel several owners across verified reviews link to back pain relief.
- Guest-room practical: Two UK singles fit where one big bed won't, so a spare room can sleep visiting friends or grandchildren without dominating the space.
- Cheap, easy bedding: Single sheets and a 135 x 200cm duvet are the most widely stocked bedding in the UK, so replacements never involve a hunt.
This size suits you if...
You're buying for a child's or teenager's room and want a supportive, no-frills mattress that will cope with years of use, you sleep alone and prefer a properly firm feel, or you're setting up a guest room or a first flat where the frame is already a single.
Consider another size if...
You sleep alone but want space to stretch out, and your room can take a wider bed. We'd recommend the UK small double of this mattress instead: it's 30cm wider, the same length, and we suggest at least 2.4m x 2.8m of floor space.
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What size is the Relyon Orthofirm Deluxe UK single?
It measures 90 x 190cm, which is 3ft x 6ft 3in, the standard UK single. We suggest allowing a room of at least 2.1m x 2.8m so there's space to walk around and change the bedding without squeezing past furniture.
Will the Relyon Orthofirm Deluxe UK single fit a bunk or mid-sleeper frame?
In most cases, yes. Its 22.5cm depth is slimmer than many pocket spring mattresses, which helps it sit below the guard rail on bunk and cabin beds. Frames vary, so check the maximum mattress depth your frame's maker specifies before you buy.
Is the Relyon Orthofirm Deluxe UK single suitable for a child?
It can be, with one caveat. The firm, even support suits growing bodies, and a single fits neatly in a child's room alongside storage and a desk. Very light children who sleep on their side may find it a little unyielding at the shoulder and hip, so weigh that against your child's build.
Is there a bigger size than the single if I want more width?
Yes, though the range skips the standard UK double. The next size up is the UK small double, which is 30cm wider than the UK single and the same length. For that size we suggest a room of at least 2.4m x 2.8m.
Where can I buy the Relyon Orthofirm Deluxe 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 availability rather than a snapshot, and it's the quickest way to check today's best price for this size.