Firmness
Type
Pocket Spring
Depth (cm)
Number of Layers
7
Trial Period (nights)
200
Warranty (years)
10
Price Range
£749 to £1,499
Best Sleeping Position(s)
Certifications
Assessed from Emma's published specification for this mattress, captured September 2026, and from regular price comparison across our UK retail partners.
If you want deep, hug-like cushioning without giving up support, this is the model in Emma's range built for exactly that. The MemoryAdapt and SupportBase layers are thicker here than in other Performance models, at 4.5 cm and 6.5 cm respectively, which means a more enveloping feel when you first lie down. The AirGrid™ layer is a flexible grid engineered to adapt to your body, and the zoned pocket springs add bounce while reducing motion transfer, useful if you share a bed with a restless partner. Add the 200-night trial and 10-year guarantee from Emma, plus free delivery in one to three weeks, and the risk of trying it is fairly low. Yes, it starts at £749, but you are paying for the range-topping build.
Key Features & what's inside
- Cover. A knit cover designed to feel cool and ultra soft, with breathable micro-dots that move air outwards. In practice, that should help the surface stay fresher through the night.
- Emma AirGrid™ Tech. Emma's most advanced AirGrid™ layer, a flexible grid engineered to adapt to your body. It is there for pressure relief, flexing where you press into it rather than pushing back evenly.
- MemoryAdapt layer. This is the layer that gives the first comforting hug, responding to your body with immediate cushioning to relieve pressure. In the Performance 30 it is 4.5 cm thick, deeper than in other models in the range.
- SupportBase. A 6.5 cm foam layer that keeps you supported in every zone, easing strain on sensitive pressure points. It also creates a smooth transition down to the core layers, so you shouldn't feel a sudden change in firmness.
- Zoned pocket springs. Zoned pocket springs add bounce, extra support and stability, which means the mattress responds when you move rather than leaving you feeling stuck. They also reduce motion transfer, a quiet benefit for couples.
- SupportBase. A second foam layer that grounds the zoned spring core and keeps the mattress structure stable. Think of it as the foundation the rest of the build sits on.
- 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.
Who's it NOT for?
If you prefer a firm, on-top-of-the-mattress feel, the deep cushioning here may feel too enveloping. It is also a premium buy at £749 to £1,499, so budget shoppers will find better value elsewhere in Emma's own range, where the cushioning layers are slightly thinner.
Emma Performance 30 Mattress
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How long is the trial on the Emma Performance 30 mattress?
Emma's own site lists a 200-night trial on the Performance 30, which is longer than most brands offer. That gives you several months at home to decide whether the feel suits you before committing.
Does the Emma Performance 30 have springs or is it all foam?
It's a hybrid. Alongside foam layers, including a memory foam MemoryAdapt layer and grid foam AirGrid™ Tech, it has a core of zoned pocket springs that add bounce and support while reducing motion transfer. Emma doesn't publish a spring count for this model.
What sizes does the Emma Performance 30 come in?
Seven sizes: UK Single, UK Small Double, UK Double, UK King, UK Super King, plus EU Double and EU King. The EU options are handy if you have a continental bed frame. Prices range from £749 to £1,499 depending on size.
How firm is the Emma Performance 30 mattress?
Emma doesn't give a firmness rating on a numbered scale. The brand describes the Performance 30 as offering maximum height for personalised cushioning and tailored support, and it is positioned as the maximum comfort option in the range, with the deepest cushioning layers.
How long does Emma Performance 30 delivery take?
Emma lists free delivery taking one to three weeks. The mattress also comes with a 10-year guarantee, so you're covered well beyond the trial period.
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