Relyon Comfort Pure 1000 King Size Mattress
The Relyon Comfort Pure 1000 is a pocket spring mattress with a medium firm tension, which means the springs move independently to follow your shape while keeping a supportive, slightly firmer feel underneath.
- Minimises partner disturbance
- Suits back & combination sleepers
- From a long-established British maker
£578.55
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Relyon Comfort Pure 1000 Mattress
More available sizes
Last seen for £539 at Mattress Man on 9th November 2026
Last seen for £827.10 at Mattress Man on 9th November 2026
Last seen for £425 at Mattress Man on 9th November 2026
Mattress details
Mattress
Relyon Comfort Pure 1000 Mattress
Size
Firmness
Medium Firm
Construction
Pocket Spring
Depth (cm)
Layers
4
Layer Details
Probiotic top layer
The top layer has a probiotic fabric treatment (Bio-Protect), described as a 100% natural treatment to protect against allergens. If allergens are a worry for you, that gives the surface a bit of extra protection.
Comfort layer
A comfort layer of fillings sits under the soft knitted, micro-quilted cover and adds softness to the surface. It takes the edge off the springs below, though the feel stays medium firm overall.
Pocket spring core
The core has 1,000 individually pocketed Posturepocket springs, which provide the main structure and support. Because each spring moves on its own, the mattress follows your shape and passes less movement across to a partner. The 1,000 figure is given for King size, so it may differ in other sizes.
Edge springs
Two firmer rows of pocket springs run around the outer edges. They give support right to the sides, so sitting on the edge or sleeping near it should feel steadier.
Layer details from mattressman.co.uk and baybeds.co.uk product pages, October 2026.
Key benefits
- 75cm each for couples: Two sharing get 75cm of width apiece, which means you can turn over without negotiating for territory in the small hours.
- Springs plus space to cut disturbance: The 1,000 pocket springs move independently, and in the UK king that separation is matched by real physical distance, so a restless partner registers less.
- 200cm of length for taller sleepers: The UK king is 10cm longer than the UK double, which matters far more than width if one of you is nudging six foot.
- A meaningful step up from a double: At 15cm wider than the UK double, that works out at 7.5cm more each, enough to feel every night rather than just on paper.
- Fits a normal master bedroom: We suggest at least 2.7m x 2.9m, which most UK master bedrooms can manage, unlike the roomier demands of a super king.
This size suits you if...
You share the bed every night and a double has started to feel cramped, especially with the medium firm tension encouraging you to sleep on the surface rather than sink into your own dip. It also suits couples on mismatched schedules, where one of you slips out hours before the other, and anyone approaching six foot who keeps finding their feet at the edge of a 190cm mattress.
Consider another size if...
Your bedroom falls short of the 2.7m x 2.9m we suggest for a UK king, or you sleep alone. For solo sleepers we'd recommend the UK double instead, and allow at least 2.6m x 2.8m for it.
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FAQ's
What room size do I need for the Relyon Comfort Pure 1000 in a UK king?
We suggest a bedroom of at least 2.7m x 2.9m. That leaves walking space either side and room to open drawers, though wardrobes and radiators eat into it quickly, so measure the usable floor rather than the wall-to-wall figure. If your room is smaller, the UK double needs at least 2.6m x 2.8m.
Is a UK king long enough for someone over six foot?
At 200cm, the UK king gives a sleeper of six foot or a little over comfortable clearance, and it is 10cm longer than the UK single, small double and double. If you are considerably taller, no wider size adds length here: the UK super king is the same 200cm long.
How much space does each person get in a UK king?
Two people sharing get 75cm of width each, which is 7.5cm more per person than the UK double offers. On a pocket spring mattress like this, that gap does useful work: the springs already respond to each of you separately, and the extra distance reduces disturbance further.
Should a couple size up from the UK king to the UK super king?
The UK super king is 30cm wider, giving 90cm each rather than 75cm, and the two are the same length. It suits couples who share with children or a dog as a matter of routine. You will need a bigger room though: we suggest at least 3m x 2.9m for the UK super king.
Does a king size reduce partner disturbance on a pocket spring mattress?
It helps in two ways. The 1,000 pocket springs compress individually, so movement on one side transfers less than an open coil design would allow. Then the UK king's width keeps you 75cm apart to begin with, useful when one of you gets up hours earlier and the other wants to stay asleep.