120-night sleep trial with comfort guarantee
Free shipping on orders over €49
Finance your purchase for up to 40 months interest-free
Discover the new Flex Eternity Multi Mattress, designed to provide a high feel and long-lasting restorative sleep. Its premium comfort layers combine hypoallergenic fibres with the Double Soft System foam structure and Comfort System technology, delivering progressive comfort and excellent body adaptation in every sleeping position.
One of the standout features of this mattress is the combination of adaptive comfort with the robust support of the Multielastic® continuous spring system. The core combines Pocket Premium® Micro pocket springs with the continuous spring block, helping distribute body weight evenly across the sleep surface while providing a firmer and more stable feel.
The outer fabric with viscose content offers a soft and pleasant touch while incorporating the Total Protect treatment against mites, bacteria and fungi, helping create a cleaner and healthier sleep environment.
Its highly breathable construction promotes continuous airflow inside the mattress, helping dissipate excess body heat and moisture during sleep for fresher and more comfortable nights.
If you are looking for a fresh, durable and very firm mattress with premium materials and excellent durability, the Flex Eternity Multi Mattress is an outstanding choice available at Colchón Exprés.

Do you need help? Book a free call, at a time and day that suits you, with one of our experts, from one of our physical stores. We will listen to your needs and tell you which mattresses or pillows best adapt to your way of sleeping, without any commitment.

Hypoallergenic Fibers
High quality compact fiber, designed to reduce the risk of allergies and maintain a constant temperature. It offers a progressive reception, excellent comfort and promotes continuous ventilation that improves the recovery of the mattress.
Double Soft Sense System (DSS)
Soft high-density foam integrated into the padding, which improves the reception in the initial lie down and provides an enveloping and comfortable rest from the first contact.
Commodo+® System
High-density material that progressively adapts to the body, avoiding pressure points and improving the ergonomics of rest.
Pocket Premium® Mipro pocket spring (5cm)
Spring shell that reinforces adaptability point by point, maximizing comfort and offering a more enveloping and personalized rest.
Multielastic® NxT continuous spring
Compact block of double continuous thread springs in a crossed spiral, which guarantees excellent adaptation to the body. It stands out for its high elasticity, non-deformability and durability, ensuring flexible and constant support throughout the useful life of the mattress.
| Flex Eternity Multi Mattress | Ingravity Termalfresh Active Mattress | Flex Ever Strong Mattress | |
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Select brand: Select model: | Select brand: Select model: | ||
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| Marca | |||
| Marca | ![]() | ![]() | ![]() |
| Firmeza | |||
| Firmeza | 8 / 10 | 8 / 10 | 10 / 10 |
| Precio | |||
| Precio | €73800 | €56900 | €59220 |
| Galardon | |||
| Galardon | - | Best Quality-Price Pocket Spring Mattress | - |
| Tejido Exterior | |||
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| Capas del Acolchado | |||
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| Núcleo | |||
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| Encapsulado perimetral | |||
| Encapsulado perimetral | Si | Si | Si |
| ¿Es desenfundable? | |||
| ¿Es desenfundable? | ![]() | ![]() | ![]() |
| Tratamientos termorreguladores | |||
| Tratamientos termorreguladores | Tejido Damasco | Viscoelástica con partículas de gel | Tratamiento Optigrade del Tejido Exterior |
| Transpirabilidad | |||
| Transpirabilidad | 10 / 10 | 9 / 10 | 9 / 10 |
| ¿Es idóneo para camas articuladas? | |||
| ¿Es idóneo para camas articuladas? | ![]() | ![]() | ![]() |
| ¿Es simétrico? | |||
| ¿Es simétrico? | ![]() | Si | Si |
| IMC's Recomendados | |||
| IMC's Recomendados |
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| Soporte más recomendado para este colchón | |||
| Soporte más recomendado para este colchón |
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| ¿Admite la opción de colchones gemelos? | |||
| ¿Admite la opción de colchones gemelos? | ![]() | ![]() | ![]() |
| Período de garantía | |||
| Período de garantía | 3 años | 10 años | 3 años |
| Altura | |||
| Altura | 32 cm | 30 cm | 32 cm |
| ¿Cupón promocional especial activo? | |||
| ¿Cupón promocional especial activo? | | | |
Express Shipping in 48/72 hours
The Express Shipping Service in 48/72 hours, for this mattress, is available throughout the Peninsula and the Balearic Islands.
The Mattress will be sent vacuum packed.
* This Service is incompatible with the Old Mattress Removal Service.
120 Night Trial
At Colchón Exprés we want you to try your mattress comfortably at home. That's why we offer a 120-night trial on our best-selling mattresses.
If you're not convinced, you can exchange it for another one of the same size that you like better, before the trial period ends.
Check the 120-night trial terms and conditions to find out all the details of the promotion.
Interest-Free Financing
Pay in up to 40 months Interest-Free. You can finance any order from €90, as long as the minimum monthly payment is at least €12.
Super convenient. We'll call you and one of our advisors will guide you through the financing process over the phone.
No strings attached. You can make early payments whenever you want, with no penalties or hidden tricks.
Your data protected. We don't sell your data to third parties.
For more information you can click here.
DOUBLE Sonpura Promotion
If you buy a Sonpura mattress together with a Sonpura Base, Fixed Canapé or Folding Canapé, of the same size, you will have:
45% Discount on the Base or Canapé, instead of the usual 30% (this discount will be applied directly in your cart).
5 year warranty on your equipment. rest.
*Promotion not applicable to Sonpura mattresses from the Micro range (Gaudí, Royal, Carisma and Titán) nor to the Spirit and Silence models from the Multiadapt range.