120-night sleep trial with comfort guarantee
Free shipping on orders over €49
Finance your purchase for up to 40 months interest-free
The Relax ThermoBalance Mattress is Relax's answer for those who sleep warm and need reliable thermoregulation throughout the year. Its defining feature is a fully differentiated double-sided design: the summer face uses a cold-thread Stretch fabric with Relax Cool System treatment, which prevents sleep interruptions by actively reducing excess nocturnal heat. The winter face uses a standard Stretch fabric with Hygienic treatment, delivering the right comfort level for cooler months. One simple flip adapts your sleep temperature to every season.
The Spiral Adapt pocket spring core delivers exceptional motion isolation: each spring responds independently to the weight of each body zone without transferring movement across the surface. The Relax Square perimeter reinforcement protects the edges, prevents lateral sagging, and maximises the usable sleep surface — a detail that makes a real difference over the long term.
The interior comfort system includes Visco Gel foam with memory effect and gel particles that regulate body temperature, alongside a double layer of Confort Medium — one before and one after the Visco Gel — and Confort Firm as the support base. Together they achieve excellent adaptability and high firmness with outstanding breathability.
At 29 cm in height with a Tapa-Tapa reversible design, the ThermoBalance is built for even wear over time. Available at Colchón Exprés with free delivery, installation, and removal of your old mattress. If you're looking for a similar model with Ion Repair antistress technology instead of a seasonal design, take a look at the Relax Sensac.

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.
| Colchón Relax Thermobalance | Colchón Relax Sensac | Termalfresh Swiss Ingravity Mattress | |
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Select brand: Select model: | Select brand: Select model: | ||
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| Marca | |||
| Brand | ![]() | ![]() | ![]() |
| Firmeza | |||
| Firmness | 8 / 10 | 7 / 10 | 9 / 10 |
| Precio | |||
| Precio | €38480 | €32880 | €74900 |
| Galardon | |||
| Galardon | - | - | Best Memory Foam Mattress for Hot People |
| Tejido Exterior | |||
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| Capas del Acolchado | |||
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| Núcleo | |||
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| Encapsulado perimetral | |||
| Encapsulado perimetral | Si | Si | No |
| ¿Es desenfundable? | |||
| ¿Es desenfundable? | ![]() | ![]() | ![]() |
| Tratamientos termorreguladores | |||
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| Transpirabilidad | |||
| Breathability | 9 / 10 | 9 / 10 | 10 / 10 |
| ¿Es idóneo para camas articuladas? | |||
| ¿Es idóneo para camas articuladas? | ![]() | ![]() | ![]() |
| ¿Es simétrico? | |||
| ¿Es simétrico? | Si | Si | No |
| 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 | 3 años | 10 años |
| Altura | |||
| Altura | 29 cm | 28 cm | 27 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.