Relyon Prairie 1000 Pocket Mattress
Mattress
Relyon Prairie 1000 Pocket Mattress
Size
Firmness
Firm
Construction
Depth (cm)
31
Layers
4
Layer Details
- Damask cover. A finely woven, durable fabric that's soft to the touch and doesn't retain heat, which means it should stay comfortable on warmer nights. It's built for long-lasting performance rather than a plush pillow-top feel.
- Soft White Fibres. Soft synthetic fillings that add a cosy layer over the firmer materials beneath. They're durable and resilient, designed to hold their shape over time rather than flattening quickly.
- Dual density polyester pad. Plush on one side and densely packed on the other, this pad reinforces the firm feel of the mattress. In practice it means you get a small amount of surface softness without losing that solid support underneath.
- Pocket Springs. 1,000 individual springs, each encased in its own cloth pocket, adapt to your movement independently. That means support is distributed to each part of your body, and your partner's movements are less likely to disturb you.
Layer details from mattressonline.co.uk product page, September 2026.
- 90cm each for two sharing: Two people sharing get 90cm apiece, which means a fidgety partner is far enough away that you barely register them.
- Pocket springs across the full width: The 1,000 individually pocketed springs respond to each sleeper separately, so movement on one side of a 180cm-wide bed rarely travels to the other.
- Space for the whole household: When a child pads in at 3am, or a large dog treats the bed as their own, everyone still keeps a workable share.
- A firm surface that stays stable: The firm build resists roll-together, which means each sleeper stays on their own half rather than drifting into a dip in the middle.
- Fills a larger master properly: In a period property or generous new build master, a UK king can look undersized; the UK super king suits the room.
- A cover that copes with company: The damask cover doesn't retain heat, useful when three bodies and a dog are sharing on a warm night.
This size suits you if...
You share the bed every night with a partner who shifts around, and you've decided space is the fix rather than another comfort layer. It also makes sense if children or pets regularly join you and everyone needs their own patch, or if your bedroom is large enough that a UK king would look lost in it. Allow at least 3m x 2.9m, with around 3.5m x 3.2m feeling right.
Consider another size if...
Your bedroom falls short of the 3m x 2.9m we suggest, or you sleep alone. We'd recommend the UK king instead: it still gives couples 75cm each, and needs a smaller room, at least 2.7m x 2.9m.
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How much space does each person get on a super king Relyon Prairie 1000?
Two people sharing get 90cm each, which is 15cm more per person than the UK king provides. On a firm mattress like this one, that extra width matters: neither of you needs to sink towards the other, so you each hold your own territory through the night.
Is the Relyon Prairie 1000 super king good for a restless partner?
Yes, and this size is arguably the best answer to the problem. The 1,000 pocket springs already isolate movement because each spring is encased in its own cloth pocket, but 90cm of width per sleeper adds plain physical distance. A partner turning over at the far edge of a 180cm bed is easy to sleep through.
What room size do I need for the Relyon Prairie 1000 in a UK super king?
We suggest a minimum of 3m x 2.9m, with around 3.5m x 3.2m feeling comfortable once you add bedside tables and walking space. Before ordering, check door swings and any tight landing turns too: at 180 x 200cm, this is a large item to get upstairs.
Is the Relyon Prairie 1000 super king a good choice for families sharing with children?
It suits that situation well. At 180 x 200cm there's room for a visiting child without either adult clinging to an edge, and the firm, stable surface means small bodies don't create a slope everyone rolls into. The pocket springs keep wriggling from waking the rest of the bed.
How much bigger is the super king than the king in this mattress?
The UK super king is 30cm wider than the UK king; both are the same 200cm length. That works out at 15cm more width per person for two sharing. If your room meets the 3m x 2.9m we suggest, the step up is worthwhile for couples who feel cramped.