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.
- More room each: You get 75cm per person, which is 7.5cm more each than on a UK double, so there is less edging towards the side to avoid an elbow.
- Extra length for tall sleepers: At 200cm the UK king is 10cm longer than the UK double, which means a tall partner can stretch out without their feet ending up over the edge.
- Fewer disturbances on early starts: The 1,000 springs sit in individual cloth pockets and respond separately, so when one of you gets up hours earlier, the other is less likely to feel it.
- Stable support across the width: The firm, stable feel means neither of you sinks into a dip, so you are less likely to roll towards each other during the night.
- Fits more rooms than a super king: The UK king needs less floor than the UK super king, and we suggest allowing at least 2.7m x 2.9m for it.
This size suits you if...
you share the bed every night and a UK double now feels a little cramped, one of you is tall enough to appreciate the extra 10cm of length, or you keep different hours and want slightly more distance from each other's movements.
Consider another size if...
your bedroom is smaller than our suggested 2.7m x 2.9m. For a tighter room, we'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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Is the Relyon Prairie 1000 UK king long enough for someone over six foot?
The UK king is 200cm long, or 6ft 6in, which is 10cm longer than the UK double. For a partner over six foot, that extra length is often the real reason to upgrade, because it gives room to stretch rather than lying slightly curled to keep your feet on the mattress.
How much space does each person get on a Relyon Prairie 1000 king size?
Two people sharing get 75cm each on the UK king. That is 7.5cm more each than the UK double gives you. If you want more room again, the UK super king offers 90cm each, so the UK king gives you 15cm less each than the UK super king.
Will I feel my partner move on a UK king pocket spring mattress like this one?
The Prairie 1000 uses 1,000 individually pocketed springs that respond separately, which limits the roll-together you get from older spring units. On the UK king you also have 75cm each, so there is a little more distance between you. That combination helps if one of you gets up long before the other.
Should I choose the UK king or UK super king Relyon Prairie 1000?
The two sizes are the same length, so the choice is about width and floor space. The UK super king gives 90cm each but needs at least 3m x 2.9m. The UK king gives 75cm each and needs at least 2.7m x 2.9m, which suits a bedroom that shrinks once wardrobes go in.
Is the Relyon Prairie 1000 UK king a good choice during pregnancy?
The UK king's 75cm each leaves room for a pregnancy pillow and for changing position often without crowding your partner. The feel is firm, and lighter side sleepers may find it a little solid at the shoulders and hips. Some owners mention adding a topper to soften the surface.