Firmness
Medium Soft
Type
Hybrid
Depth (cm)
28
Number of Layers
3
Trial Period (nights)
100
Warranty (years)
5
Price Range
£294 to £578
Best Sleeping Position(s)
Certifications
Assessed from Mattress Online's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
The main appeal here is pressure relief at a modest price. The memory foam moulds to your shape, which means less pressure on hips and shoulders if you sleep on your side, while the pocket springs work independently to spread your weight evenly, so you're less likely to feel your partner move. A foam encapsulated border extends the usable sleep surface right to the edge, handy if you share a bed or tend to sleep near the side. The 100-night trial gives you a proper chance to test it at home, and delivery is free to most locations, with next-day weekday delivery available. Room-of-choice delivery costs £20.00 and old mattress removal £35.00.
Key Features & what's inside
- 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.
Who's it NOT for?
If you prefer a firm surface or need extra pushback as a heavier sleeper, the soft to medium feel may let you sink further than you'd like. Hot sleepers should also think twice: memory foam can hold warmth, and there's no cooling layer listed here.
Mattress Online Memory Zone 3000 Pocket Mattress
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How firm is the Memory Zone 3000 Pocket mattress?
Mattress Online describes it as soft to medium, so expect a gentler, cradling feel rather than a firm one. That said, some owner reviews describe the feel as firmer than expected, and firmness is subjective, so the 100-night trial is a useful safety net.
How many springs does the Memory Zone 3000 have?
It contains 3000 pocket springs in total: 2000 standard pocket springs and 1000 mini pocket springs. Each spring moves independently, which means your weight is spread evenly and you're less likely to feel a partner shifting during the night.
Does the Memory Zone 3000 come with a trial and guarantee?
Yes. Mattress Online offers a 100-night trial, so you can test it at home properly, plus a 5-year guarantee covering the mattress itself. That's a reasonable package at this price point.
How much does the Memory Zone 3000 Pocket mattress cost?
Prices range from £294 to £578 depending on size, starting at £294.00. It's available in UK single, small double, double, king and super king. Delivery is free to most locations, with room-of-choice delivery at £20.00 and old mattress removal at £35.00 as optional extras.
How deep is the Memory Zone 3000 mattress?
It's 28cm deep, a fairly generous depth that should work with standard fitted sheets, though it's sensible to check your bedding if your sheets have shallow corners.
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