What is the difference between Polyether and Cold Foam?

Polyether has a more closed-cell structure and lower resilience than Cold Foam, making it an affordable, lightweight option ideal for occasional use or guest beds.

For whom is a polyether mattress best suited?

It is best for lightweight individuals, children, or guest rooms where a firm, straightforward support is needed at an accessible price point.

Is a polyether mattress durable for daily use?

Its durability depends on the SG-value; higher values like SG40 offer more resilience and a longer lifespan, making them better suited for frequent use.

Does polyether provide good ventilation?

Polyether retains more heat than open-cell foams. We recommend using breathable cotton protectors to improve the overall microclimate.

Is polyether a safe and hypoallergenic material?

Yes. It is an inorganic material that doesn't attract dust mites, and our CertiPur-certified foam ensures a safe, toxin-free sleep.

Polyether Foam

Polyether foam is a type of polyurethane foam with low resilience. A lot or little air can be added to the foam, and the amount of air per cubic metre is indicated by its density (SG). Density refers to the number of kilograms of material used per cubic metre (kg/m³). The higher the density (also called mass, density, or weight), the more resilient, durable, and comfortable a polyether mattress is.

Example: A polyether mattress with SG25 weighs 25 kg per cubic metre. This mattress will feel soft and loose. Polyether mattresses with SG23/25 are often bought as children's mattresses (up to around age 10) or for guest beds.

A polyether mattress with a density of SG40 offers much better resilience. More importantly, the point elasticity of an SG40 polyether mattress is significantly improved. Point elasticity is the ability to compress a specific area of the mattress without affecting a large surrounding surface. The more point-elastic the polyether mattress, the better it conforms to the body’s contours and provides more precise support.

Polyether mattresses are especially popular due to their price. The average lifespan of a polyether mattress is approximately 7 to 10 years. From a hygienic standpoint, it is advisable to replace the mattress within this time frame.