Relyon Cerrado Pillowtop 1000 Pocket King Size Mattress
The Relyon Cerrado Pillowtop 1000 Pocket Mattress combines 1000 individual pocket springs with a pillow top and silk and polyester fibre fillings, which means firm support with a slightly softer, cushioned surface.
- Firm feel with a cushioned top
- Firmer outer springs for stable edges
- Handcrafted in the UK
£594
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Relyon Cerrado Pillowtop 1000 Pocket Mattress
More available sizes
Mattress details
Mattress
Relyon Cerrado Pillowtop 1000 Pocket Mattress
Size
Firmness
Firm
Construction
Pocket Spring
Depth (cm)
36
Layers
4
Layer Details
Comfort fillings
A blend of silk and polyester fibres sits at the surface. It gives the top a soft, comforting feel over the firmer layers below.
Additional fillings
Soft white fibres and a polyester and cotton blend add breathability and cosy comfort. That helps the surface feel cushioned without losing air flow.
Polyester fibre pad
A densely packed polyester fibre pad finishes the build. It adds to the firm feel, so the mattress stays supportive.
Pocket spring core
A core of 1000 individual pocket springs, each in its own fabric pocket. The springs move independently, so the mattress supports you closely across its surface.
Layer details from mattressonline.co.uk product page, October 2026.
Key benefits
- More room each than a double: The UK king gives you 7.5cm more each than the UK double, which means a little more space between you and fewer elbows at 3am.
- Extra length for taller sleepers: At 200cm, the UK king is 10cm longer than the UK double, so a partner over six foot can lie flat without their feet hanging over.
- Less disturbance from an early riser: Independent pocket springs combined with the extra width mean that when one of you gets up hours before the other, the movement is less likely to travel across the bed.
- Steadier edges on a wider surface: The Calibar Edge uses firmer outer springs, which means you can sit on the side of a UK king to dress or get up without feeling it dip.
- Firm support across the whole bed: The pillow top softens the surface slightly, but the firm rating holds, so both of you get consistent back and front sleeping support from edge to edge.
This size suits you if...
You share the bed every night and have started to feel cramped in a double, or one of you is over six foot and needs the extra length. It also suits couples on different schedules, where a little more distance means the early riser can slip out without waking the other.
Consider another size if...
Your bedroom is smaller than our suggested 2.7m x 2.9m once wardrobes are in. For a tighter room, we'd recommend the UK double instead, which needs at least 2.6m x 2.8m.
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FAQ's
Is the Relyon Cerrado Pillowtop UK king big enough for two people?
For most couples, yes. The UK king gives 75cm each for two people sharing, which is 7.5cm more each than the UK double. If you both sprawl, or a dog regularly joins you, the UK super king gives 90cm each, but it needs a room of at least 3m x 2.9m.
What room size do I need for a UK king Relyon Cerrado Pillowtop?
We suggest allowing at least 2.7m x 2.9m for a UK king, with 3.2m x 3.2m comfortable. New build master bedrooms can feel smaller once fitted wardrobes are in, so measure the floor space you actually have left rather than the room's listed dimensions.
Is a king size Relyon Cerrado Pillowtop long enough for someone over 6ft?
The UK king is 200cm long, 10cm longer than the UK double, which is often the real reason a tall partner wants to upgrade. If length is your only concern and space is limited, the UK king still makes sense, because every smaller size of this mattress is shorter.
Should we get the UK king or UK super king Relyon Cerrado Pillowtop?
Both are 200cm long, so the choice comes down to width and room. The UK super king is 30cm wider and gives 15cm more each, but needs at least 3m x 2.9m. If your room is closer to our suggested 2.7m x 2.9m for the UK king, the UK king is the sensible fit.
Will a UK king Relyon Cerrado Pillowtop help if my partner wakes me up?
It should help a little. The 1000 pocket springs move independently, and the UK king's extra 7.5cm each over the UK double puts slightly more distance between you. If one of you leaves hours before the other, that combination can mean fewer disturbed mornings, although no mattress removes movement entirely.