Emma Performance 28 Mattress
Mattress
Emma Performance 28 Mattress
Size
Firmness
Construction
Depth (cm)
28
Layers
7
Layer Details
- Cover. A knit cover with breathable micro-dots that move air outwards, designed to feel cool and ultra soft. It's the first thing your skin meets, so the airflow focus should help if you tend to run warm.
- Emma AirGrid™ Tech. Emma's most advanced AirGrid™ layer, a flexible grid engineered to adapt to your body. In practice, this means pressure relief that adjusts to your shape rather than pushing back uniformly.
- MemoryAdapt layer. This gives the first comforting hug, responding to your body with immediate cushioning. It's where the pressure relief you feel at hips and shoulders comes from.
- SupportBase. A transition layer that keeps you supported in every zone, easing strain on sensitive pressure points. It also creates a smooth handover to the core layers, so you don't feel a sudden change in feel as you sink in.
- Zoned pocket springs. These add bounce, extra support and stability, with zoning to give responsive support where you need it. The pocketed design also reduces motion transfer, useful if you share the bed.
- SupportBase. A second SupportBase layer that grounds the zoned spring core and keeps the mattress structure stable. Think of it as the foundation everything else works from.
- Bottom cover. A simple base cover that keeps the mattress in place on your bed frame.
Layer details from emma-sleep.co.uk product page, September 2026.
- A shared size that fits the room: At 135 x 190cm, or 4ft 6in x 6ft 3in, it suits two people sharing without dominating a typical UK bedroom.
- Motion transfer matters more here: With 67.5cm each for two people sharing, you're close to your partner, so the zoned pocket springs' reduced motion transfer is genuinely useful at this width.
- Room to keep your furniture: We suggest allowing at least 2.6m x 2.8m, which in most doubles-sized bedrooms still leaves space for bedside tables on both sides.
- Easy to dress, with one caveat: Double sheets and duvets are sold everywhere at every price, although the 28cm depth means you'll want deep fitted sheets specifically.
- Generous for one, workable for two: A solo sleeper gets serious sprawling room, and a couple gets the long-standing UK standard, so it adapts if your circumstances change.
This size suits you if...
You share the bed and your room sits comfortably above our suggested 2.6m x 2.8m minimum but would feel cramped around a UK king, or you sleep alone and want space to stretch out, perhaps with a dog or cat claiming a corner. It also makes sense for a guest room that has to accommodate visiting couples without swallowing the space.
Consider another size if...
You and your partner both like to spread out, since 67.5cm each for two people sharing is snug for restless sleepers. The UK king, 15cm wider than the UK double, would suit you better if the room allows.
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Is the Emma Performance 28 in a UK double big enough for two adults?
Yes, with the usual double caveat: 67.5cm each for two people sharing is comfortable rather than roomy. The Emma Performance 28 helps here, because its pocket springs reduce motion transfer, so a partner turning over is less disruptive at close quarters than it would be on a bouncier open-coil mattress.
What room size do I need for the Emma Performance 28 double?
We suggest allowing at least 2.6m x 2.8m, with around 3m x 3m being the comfortable norm. That gives you walking space on both sides and room for bedside tables. If your bedroom is smaller than that, the UK small double keeps the same length in a narrower footprint.
Will standard double fitted sheets fit the Emma Performance 28?
Width-wise yes, it's a standard 135 x 190cm double, so double sheets and a 200 x 200cm double duvet are the right sizes. The catch is depth: at 28cm this is a tall mattress, so choose deep fitted sheets rather than standard ones, which may ping off the corners.
Should I get the Emma Performance 28 in a double or a king?
It comes down to your room and how you sleep. The UK king is 15cm wider than the UK double, which two restless sleepers will feel every night. But a king needs more floor space, and in a typical UK bedroom the double leaves room for furniture where a king can crowd the walls.
Is a double Emma Performance 28 hard to get upstairs?
It arrives rolled and boxed with free delivery in 2 to 7 working days, which makes the turning stairs of older terraces and tight new build landings far easier than a traditional flat mattress would be. Do check landing corners before it expands, because once unrolled a 135 x 190cm, 28cm deep mattress is awkward to move.