Firmness
Type
Hybrid
Depth (cm)
28
Number of Layers
7
Trial Period (nights)
200
Warranty (years)
10
Price Range
£599 to £1,199
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.
The main draw is the layered construction. The AirGrid™ layer is a flexible grid designed to adapt to your body for pressure relief, while the MemoryAdapt layer beneath gives that initial cushioned hug when you lie down. Under that, zoned pocket springs add bounce and stability while reducing motion transfer, which means you're less likely to feel a partner shifting in the night. The 28 cm depth is pitched by Emma as giving more consistent body-moulding and fit. Add free delivery in 2 to 7 working days, a 200-night trial and a 10-year guarantee, and it's a fairly low-risk purchase, albeit not a cheap one.
Key Features & what's inside
- 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.
Who's it NOT for?
At 28 cm deep, this is a tall mattress, so some standard fitted sheets may struggle and adjustable bases may not suit it. If you prefer a very simple all-foam feel, the springy, bouncier character of the hybrid core may not be for you. Budget shoppers may also find the larger sizes a stretch at up to £1,199.
Emma Performance 28 Mattress
How thick is the Emma Performance 28 mattress?
It's 28 cm deep, which Emma says gives greater height for more consistent body-moulding and fit. Its MemoryAdapt layer is 3.5 cm and the SupportBase is 5.5 cm. Do check your fitted sheets can accommodate the extra depth.
Does the Emma Performance 28 come with a trial?
Yes. Emma offers a 200-night trial on this mattress, so you can sleep on it at home for a good stretch before deciding whether to keep it. It also comes with a 10-year guarantee.
Is the Emma Performance 28 a hybrid mattress?
Yes. It combines foam layers, including Emma's AirGrid™ tech and a MemoryAdapt memory foam layer, with zoned pocket springs and a foam frame. That mix gives you pressure-relieving comfort on top with responsive, bouncier support underneath.
How much does the Emma Performance 28 cost?
Prices range from £599 to £1,199 depending on size. It's available in UK Single, Small Double, Double, King and Super King, plus EU Double and EU King.
How long does Emma Performance 28 delivery take?
Emma lists free delivery within 2 to 7 working days on its own site.
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