What Is a Latex Mattress? Dunlop, Talalay and Natural vs Synthetic
Latex is foamed rubber. It springs back the instant you move, it runs cooler than any foam, and it lasts longer than anything else in a mattress. It is also heavy and expensive, which is the whole trade-off.
Dunlop and Talalay
Two ways of turning liquid latex into a block.
- Dunlop. The mould is filled and the latex cures with gravity pulling the sediment down. The result is slightly denser at the bottom, firmer overall, and simpler to make. It is the older process and the more durable block.
- Talalay. The mould is part-filled, vacuum-sealed, flash-frozen and then cured. The result is more uniform and lighter, so it feels softer and more consistent through the block.
Neither is better. Dunlop suits support cores and firmer comfort layers; Talalay suits softer comfort layers. Our 100% Dunlop block is a single continuous core with no glue lines anywhere in it.
Natural, blended, synthetic
This is where labels get slippery, so read them literally:
| Label | What it usually means |
|---|---|
| 100% natural latex | All the rubber content is from the tree. Trust it only when a percentage is stated. |
| Natural latex | Often a blend. The word "natural" alone is not a quantity. |
| Blended / latex | Natural plus SBR synthetic. Cheaper, still durable, slightly less resilient. |
| Synthetic latex | All SBR. Behaves like latex, does not last like it. |
If a product page will not tell you the percentage, assume it is blended.
Why it sleeps cool
Latex is pinned through during moulding — those rows of holes you see in a cut block are deliberate. Air moves through the core rather than sitting in it. Combined with an open cell structure, that puts latex several degrees cooler than memory foam of the same thickness.
Why it lasts
Rubber recovers. Polyurethane foam takes a set: compress it a few million times and the cells collapse permanently. Latex does not, which is why a good latex mattress is still doing its job at fifteen years when a foam one of the same price is a decade dead.
The honest drawbacks
- Weight. A Super king in solid Dunlop is a two-person lift. Consider that before ordering one for a loft.
- Price. The raw material costs several times what polyurethane does.
- Feel. It pushes back. People who want to sink into a bed do not like it, and that is a preference, not a fault.
Latex allergy
Worth addressing plainly. Latex allergy is a reaction to proteins in raw latex, and the washing and vulcanising in mattress manufacture removes almost all of them; documented reactions to a covered latex mattress core are very rare. That said, if you have a diagnosed latex allergy, this is a question for your doctor and not for a mattress shop, and we would rather you asked them than took our word for it.
Common questions
Is latex good for side sleepers?
Yes, particularly zoned latex — softer under the shoulder, firmer under the hip. See the Copper Latex 7-Zone.
Does latex smell?
Faintly, of rubber, for a few days. It is nothing like the off-gassing of new polyurethane.
Can latex go on a solid base?
It can, but it is heavy and it does not breathe from below. Slats are better.