Harrison Spinks The Classic 2750 Pocket Mattress (Medium Feel)
Mattress
Harrison Spinks The Classic 2750 Pocket Mattress (Medium Feel)
Size
Firmness
Medium
Construction
Depth (cm)
24
Layers
5
Layer Details
- Cover. A cover of wool and natural viscose, fibres that are soft to the touch and naturally fire retardant. That means no chemical fire-retardant treatments are needed to meet safety standards.
- Comfort fillings. Multiple layers of wool, hemp and flax sit beneath the cover, which means a cosy surface feel that also breathes well. Natural fibres like these tend to sleep cooler than synthetic foams.
- MicroHD springs. A layer of 2,000 MicroHD springs sits above the core spring unit. These smaller springs add responsiveness and a more contouring feel at the surface.
- Support layer. Two layers of Ecotex fibres, made from recycled materials, support the spring system. A small sustainability point, and it gives the springs a stable base to work from.
- Core springs. The core holds 750 Cortec Quad springs, a design where four springs are fused into a single pocket. In practice that means increased responsiveness, so the mattress reacts quickly as you shift position.
Layer details from mattressonline.co.uk product page, September 2026.
- Fits the smallest bedrooms: At 3ft wide, this size leaves floor space free for a desk, wardrobe or toy storage in a child's room where the bed competes for every metre.
- Natural fillings for growing sleepers: Wool, hemp and flax breathe better than synthetic foam, which matters for children and teens who run warm at night.
- A medium feel most people can share: In a guest room or spare room doubling as an office, the medium tension suits visiting back and side sleepers without you knowing their preferences in advance.
- Springs that make turning easy: The responsive Cortec Quad core means lighter sleepers, including children, can shift position without the stuck feeling foam sometimes gives.
- Cheap, easy bedding: Standard single sheets and a 135 x 200cm single duvet fit, and both are the most widely stocked bedding of any UK size.
This size suits you if...
You're buying for a child or teenager and want natural fillings rather than foam, you're furnishing a guest room or a spare room that also works as an office, or you're a single adult in a compact room, perhaps a loft conversion or first flat, where 90cm of width is all the footprint allows.
Consider another size if...
You're an adult who shares the bed, or you simply want more width than 90cm to stretch out. The UK small double is 30cm wider at the same length; allow at least 2.4m x 2.8m for it.
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What are the dimensions of the Classic 2750 in a UK single?
The UK single measures 90 x 190cm, which is 3ft x 6ft 3in. That's the standard one-person size in the UK, so it fits ordinary single bed frames, divans and most guest beds without any checking beyond the frame's stated size.
Is the Classic 2750 UK single good for a child or teenager?
Yes, with one caveat. The wool, hemp and flax fillings breathe well, useful for children who sleep warm, and the medium feel suits lighter bodies. It costs more than a basic children's mattress, though a teenager can grow into it rather than out of it, since 190cm of length carries most people through to adulthood.
Will the UK single Classic 2750 work on a bunk or mid sleeper frame?
The footprint matches standard bunk and mid sleeper frames, which take UK single mattresses. Depth is the thing to check: at 24cm, this mattress is deeper than the thin mattresses many raised frames are designed around, so measure against the frame's maximum depth and make sure the guard rail still sits well above the surface.
How much floor space does a UK single mattress need?
We suggest at least 2.1m x 2.8m, which allows walking space around the bed. That's our own guidance rather than the manufacturer's. In practice a UK single fits rooms none of the larger sizes can: box rooms, lofts with a narrow strip under the slope, and shared children's rooms where two beds plus a walkway have to coexist.
Should I choose the UK single or the UK small double for one adult?
If the room takes it, the UK small double gives a solo adult noticeably more space: it's 30cm wider than the UK single, at the same length. Allow at least 2.4m x 2.8m for the UK small double. In a tighter room, or where the bed shares space with a desk, the UK single is the practical pick.