Mattress Online Memory Zone 3000 Pocket Super King Mattress
The Memory Zone 3000 Pocket is a hybrid mattress from Mattress Online, combining memory foam with 3000 pocket springs (2000 standard plus 1000 mini) in a 28cm deep design.
- Pressure relief for side sleepers
- Usable sleep space to the edge
- 100-night trial & 5-year guarantee
£574
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Mattress Online Memory Zone 3000 Pocket Mattress
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Mattress details
Mattress
Mattress Online Memory Zone 3000 Pocket Mattress
Size
Firmness
Medium Soft
Construction
Foam
Pocket Spring
Hybrid
Memory Foam
Depth (cm)
28
Layers
3
Layer Details
Memory Foam
Memory foam cradles to your shape, which means a cushioned, contouring feel rather than a springy one. The plush layers mould to your body to encourage correct spinal alignment.
Pocket Springs
2000 standard pocket springs and 1000 mini pocket springs work independently of each other, which means weight is distributed evenly and movement transfers less across the mattress.
Foam Encapsulated Border
A foam wall around the springs firms up the edges. In practice, that means more usable sleep space and less of a roll-off feeling near the sides.
Layer details from mattressonline.co.uk product page, September 2026.
Key benefits
- 90cm of width each: Two people sharing get 90cm apiece, which means a fidgety partner is simply further away and much easier to sleep through.
- Pocket springs plus distance: The 3000 pocket springs already limit motion transfer, and at this width most movement happens too far away to reach you at all.
- Room for the whole household: When children pad in at 3am or the dog claims the foot of the bed, everyone still has a workable share of the surface.
- Usable space right to the edge: The foam encapsulated border firms up the sides, which matters more here: pushed outward by a child in the middle, you can still sleep near the edge securely.
- Gentle feel across a big surface: The soft-to-medium memory foam cradles side sleepers' hips and shoulders, and at this size each person sinks into their own patch without disturbing the other.
This size suits you if...
You share the bed most nights with a partner who tosses and turns, and distance appeals more than any comfort layer ever could. Or children and pets treat your bed as theirs too, and a UK king has started to feel crowded. You'll also need the room for it: allow at least 3m x 2.9m, with a larger master or period bedroom suiting it best.
Consider another size if...
Your bedroom falls short of our suggested 3m x 2.9m minimum, or you'd struggle to get a 180cm-wide mattress round your landing. 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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FAQ's
Is the Memory Zone 3000 super king big enough for a family to share?
It's the most forgiving size for it. At 180cm wide, two adults get 90cm each, so when a child climbs in overnight everyone keeps a reasonable share. The firmer foam border helps here too, letting whoever ends up nearest the edge sleep there without a roll-off feeling.
What room size do I need for the Memory Zone 3000 in a super king?
We suggest at least 3m x 2.9m. That leaves enough space to walk round the bed and open drawers, though a larger room will feel more comfortable. If yours is tighter, the UK king needs at least 2.7m x 2.9m and gives couples 75cm each, still a generous share.
How much wider is the super king than the king in this mattress?
The UK super king is 30cm wider than the UK king, and the two are the same length at 200cm. For a couple, that works out at 15cm more width each, which is roughly the difference between feeling your partner shift and barely noticing them.
Can I get the Memory Zone 3000 super king up a narrow staircase?
This is where the size bites. A 180 x 200cm hybrid with 3000 pocket springs is awkward on tight landing turns and around door swings, and it won't fold like an all-foam mattress. Measure your staircase and any turns first, and check the retailer's delivery guidance before ordering.
Does a restless partner still disturb you on a super king?
Far less than on smaller sizes. The 2000 standard and 1000 mini pocket springs move independently, so motion doesn't travel far across the surface, and with 90cm of width each most of their fidgeting happens well outside your half. Distance does what no comfort layer can.