Harrison Spinks The Classic 2750 Pocket Mattress (Firmer Feel)
Mattress
Harrison Spinks The Classic 2750 Pocket Mattress (Firmer Feel)
Size
Firmness
Firm
Construction
Depth (cm)
24
Layers
5
Layer Details
- Cover. Wrapped in high quality wool and natural viscose, fibres that are incredibly soft to the touch. They're also naturally fire retardant, so no chemical treatments are needed.
- Comfort fillings. Multiple layers of wool, hemp and flax sit beneath the cover. These natural fibres provide soft, cosy comfort and breathe well.
- MicroHD springs. A layer of 2,000 MicroHD springs sits above the core spring unit, which means the surface responds more precisely to your body. It's designed to make the mattress feel more adaptive as you move.
- Cortec Quad springs. The core holds 750 Cortec Quad springs, a design that fuses four springs into one pocket. That means increased responsiveness compared with a single spring doing the same job.
- Support layers. Two layers of Ecotex fibres, made from recycled materials, sit beneath the springs. They give the spring system a stable base to work from.
Layer details from mattressonline.co.uk product page, September 2026.
- Space that solves restlessness: With 90cm each, a partner who turns all night is simply further away, and the pocket springs respond individually so movement travels less anyway.
- Room for the whole household: When children or a large dog treat your bed as theirs, this footprint means everyone keeps a workable share of the mattress.
- Natural fillings across a bigger surface: Wool, hemp and flax breathe well, which matters more when three or four bodies are generating heat under one duvet.
- A firm feel two sleepers can share: The firmer tension holds its shape edge to edge, so neither side sags towards the middle over a 180cm width.
- Sized for larger master bedrooms: In a period property or a big new build master, a UK super king fills the space where a UK king can look undersized.
This size suits you if...
You share the bed every night and want the most space a standard UK size offers, your children or pets regularly join you and a UK king has started to feel crowded, or your partner is genuinely restless and distance matters more to you than any comfort layer. Your bedroom should measure at least 3m x 2.9m, with more feeling comfortable.
Consider another size if...
Your bedroom falls short of the 3m x 2.9m we suggest, or you'd struggle to turn a mattress this size on your own. We'd recommend the UK king instead: it's 30cm narrower, the same length, and needs at least 2.7m x 2.9m.
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What room size do I need for the Classic 2750 in a UK super king?
We suggest at least 3m x 2.9m, and that's our guidance rather than the manufacturer's. The mattress itself is 180 x 200cm, so a smaller room leaves you shuffling sideways past the footboard. Measure with wardrobe doors and drawers open before you commit, because at this size a tight fit is a daily annoyance.
How much bigger is the super king Classic 2750 than the UK king?
The UK super king is 30cm wider than the UK king, and the two are the same length at 200cm. All of that extra width goes into sleeping space, taking each person from a shared 150cm to 90cm each. If disturbance from a partner is your main complaint, that width does more than any filling can.
Is the super king Classic 2750 big enough for co-sleeping with children?
It's the most workable standard size for it. At 180cm wide, two adults and a wandering child can each keep a reasonable share, and the individually pocketed springs mean small movements are less likely to wake everyone. The firmer tension also gives lighter children support at the edges rather than rolling them inwards.
Does the firm tension suit couples of different weights on a super king?
Generally, yes. The 2,750 springs respond to each sleeper independently, so a heavier partner sinking in doesn't tilt the lighter one's side, and 90cm each means you're rarely on the same springs at all. Lightweight side sleepers may still find the firmer feel a little unforgiving, so check the tension option carefully when ordering.
Where can I buy the Harrison Spinks Classic 2750 in a UK super king?
Compare the retailers listed on this page; the prices shown here are updated as retailers change them. One thing to check at the listing itself: this model is named Firmer Feel, yet the MattressOnline listing shows a Medium Feel rating and offers both tensions, so confirm you're ordering the firmness you actually want.