Mattress & Memory Foam
Foam for mattresses and mattress toppers, cut to order in our UK factory. All grades here are Crib 5 fire rated.
A mattress needs two layers, not one
This is the thing most people get wrong when they build or repair a mattress.
Memory foam is a comfort layer, not a support layer. Used on its own at a normal mattress thickness, it will let you sink through to the base — it does not provide structural support, and it was never designed to. What it does brilliantly is relieve pressure points once something firmer is holding you up.
The build that works:
- Support layer — a firm, high density foam, typically 3"–4". This carries your weight.
- Comfort layer — memory foam, typically 1"–2" on top. This moulds to your shape.
Which foams
| Layer | Product | Density | Firmness |
|---|---|---|---|
| Comfort / topper | Memory Foam 55M | 50 kg/m³ | 55N — soft |
| Firm support | 33H | 33 kg/m³ | 190N — hard |
| General support | 35H Universal | 35 kg/m³ | See product page |
Why memory foam is soft AND our densest foam
At 50 kg/m³ the memory foam is the densest foam we sell, yet at 55N it is also the softest. That is not a contradiction — it is the clearest possible demonstration that density and firmness are separate properties. Density is how much material is in the foam, and it predicts durability. Firmness is how easily it compresses, and it predicts feel. High density does not mean firm.
See our foam FAQs for the full explanation, or compare every grade in our foam grade comparison.
