Relyon Heyford Ortho 1500 Pocket Single Mattress
The Relyon Heyford Ortho 1500 Pocket Mattress is an extra firm pocket spring mattress, handcrafted in the UK, with 1500 individual springs and a 32cm depth.
- Extra-firm support for heavier builds
- Foam-free fibres keep you cooler
- Minimises partner disturbance
£648
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Relyon Heyford Ortho 1500 Pocket Mattress
More available sizes
Mattress details
Mattress
Relyon Heyford Ortho 1500 Pocket Mattress
Size
Firmness
Extra Firm
Construction
Pocket Spring
Orthopaedic
Depth (cm)
32
Layers
7
Layer Details
Damask cover
A finely woven damask fabric, which means a soft-touch surface that doesn't trap heat. It's a durable weave built for long-term use.
Soft white fibres
Two layers of soft white fibres sit just beneath the cover to improve breathability. In practice, this helps the mattress feel fresher through the night.
Cotton and polyester blend
A breathable blend of natural cotton and polyester that wicks moisture away from you. This keeps air circulating rather than building up warmth.
Rebound polyester and cotton fibres
A further layer of rebound polyester and cotton fibres adds a touch of comfort. It softens the surface slightly without compromising the firm feel.
Dense polyester layer
A dense polyester layer that reinforces the firm, orthopaedic character of the mattress. This is where much of the extra firm feel comes from.
Spring insulation pad
An insulation pad sits between the comfort layers and the springs. It protects the spring unit and adds durability over the years.
Pocket springs
1500 pocket springs, each secured in its own fabric pocket so they move independently. That means support tailored to your shape and less disturbance from a restless partner.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- Leaves floor space free: At 3ft x 6ft 3in, the UK single sits comfortably in a room shared with a wardrobe and desk, with space left to walk around it.
- Firm support for one: All 1500 pocket springs support a single body, which means back and front sleepers get an even, solid surface without sagging where the weight sits.
- Cooler in a small room: The fibre layers above the springs let air move rather than trapping warmth, a real help in a snug loft conversion or box room that runs warm.
- Good for twin guest beds: Two UK singles let guests who aren't partners sleep separately, each on the same firm feel, which suits friends or grown siblings visiting together.
- Fits study and guest rooms: A spare room doubling as an office can hold a UK single along one wall and still keep a desk and chair usable during the day.
This size suits you if...
You sleep alone on your back or front and want a genuinely firm surface, you're kitting out a small bedroom or a loft conversion where the bed has to tuck against a wall, or you're furnishing a guest room with two separate beds for visitors who won't be sharing.
Consider another size if...
You're a light side sleeper, or a single adult who wants more room to turn over. We'd recommend the UK small double instead, and we suggest at least 2.4m x 2.8m for the UK small double.
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FAQ's
Will the Relyon Heyford Ortho 1500 UK single fit a bunk bed or mid sleeper?
The 90 x 190cm footprint matches the standard UK single frame, but the mattress is 32cm deep, which is thick for a raised bed. Check the frame maker's maximum mattress depth and make sure the guard rail still sits well above the sleeping surface before buying.
Is the Heyford Ortho 1500 UK single too firm for a child?
It may be, a little. Relyon rates it extra firm, and lighter sleepers, particularly those who sleep on their side, can feel pressure at the shoulders and hips. A teenager who prefers a firm bed or sleeps on their back is likely to get on better with it than a small child.
How much room do I need for a Relyon Heyford Ortho in a UK single?
We suggest at least 2.1m x 2.8m of floor space for a UK single. That leaves enough clearance to make the bed and get in and out comfortably, even with a wardrobe or desk on another wall.
Is a UK single Heyford Ortho long enough for a tall adult?
The UK single is 190cm long. If your feet already reach the end of a standard bed, the UK king is 10cm longer, although it is also 60cm wider, so you'd want at least 2.7m x 2.9m of floor space for the UK king.
Should I put two Relyon Heyford Ortho singles in a guest room?
Two UK singles suit visitors who want their own bed, such as friends, grown children or a parent staying with a grandchild. Each guest gets the same extra firm feel with no shared surface. For couples who visit often, a single bed wider than 90cm per person may suit them better.