What is Flex's BioCeramics® technology?

It is a textile technology that incorporates bioceramic particles into the mattress fabric, capable of emitting long-range infrared waves (FIR) . These waves penetrate the body to enhance cellular hydration , activate circulation and accelerate tissue regeneration, promoting faster and more effective recovery during rest.

What firmness does the WBx FIT Multielástic have?

High firmness. A solid and stable feel with intelligent support thanks to the 3-zone system of the Zone Support Pro® .

What is Zone Support Pro® and what does it offer?

It is a firmness differentiation system with 3 distinct zones that provides a unique feel with targeted reinforcement in the lumbar area. It delivers optimal back support and allows the mattress to adapt differently to the various areas of the body for greater relaxation during sleep.

What is the difference between the WBx FIT Multielástic and the WBx FIT Pocket?

Both feature the same BioCeramics® fabric technology and the same comfort layers. The difference lies in the core: the Multielástic has a continuous spring system (higher overall firmness, no motion isolation) while the Pocket has individually pocketed springs (motion isolation, point-by-point contouring, medium-high firmness).

Does it have motion isolation?

No. Because it uses a continuous spring system, movement is transmitted across the surface. If motion isolation is a priority for you, we recommend the Flex WBx FIT Pocket Mattress .

Is it available as a twin/split version?

Yes. It can be made as two individual mattresses joined by a zipper. The price for the split version covers both units together.

Are delivery and setup included?

Yes. At Colchón Exprés, delivery, setup and removal of your old mattress are completely free of charge .

What is the warranty?

3 years against any manufacturing defects or faults, from the date of delivery.

Colchón Exprés
Mattresses
Flex Mattresses
Flex WBx FIT Multielastic Mattress

Flex WBx FIT Multielastic Mattress

Name: Flex WBx FIT Multielastic Mattress
Brand: Flex
SKU: COL_WBXFITMULT
Price: 464 EUR
Availability: InStock

Continuous Coil | BioCeramics® Wellness Technology | High Firmness

FREE Shipping, Assembly and Pickup

- On all orders with delivery in the Peninsula.

- Shipments to the Balearic Islands may entail an extra cost. (*See conditions)

- If you have any questions, consult one of our advisors through the chat or through our toll-free telephone number: 900 897 956.

100 night trial

You have 100 nights to try this mattress in the measurements: 90x190, 90x200, 105x190, 135x190, 150x190, 150x200, 160x200 and 180x200. We are convinced that you will love it. If not, you can exchange it for another mattress of the same size.

* See conditions

Now also with Bizum: You can now pay with Bizum at Colchón Exprés. If this is the first time you use Bizum for your online payments, follow the steps that we indicate here.

Finance up to 40 months

Pay up to 40 months WITHOUT INTEREST.

* See conditions

Details

The Flex WBx FIT Multielastic Mattress belongs to Flex's Wellness BioCeramics® range — a line designed to go beyond conventional sleep. Its standout feature is the Stretch BioCeramics® upholstery, a technical fabric that integrates bioceramic particles capable of emitting long-range infrared (FIR) waves that penetrate the body to boost cellular hydration, stimulate circulation, and accelerate tissue recovery. The result is a mattress that doesn't just support sleep — it actively works to help you recover better every night.

The 16 cm Multielástic® continuous coil core — an exclusive Flex technology — delivers firm, highly stable support with intelligent weight distribution across the entire surface. Its cross-spiral design ensures the mattress adapts to the firmness and support required by each pressure point, with outstanding resilience and above-average durability.

One of the most advanced features of this model is the Zone Support Pro® system, which differentiates three sleeping zones with varying firmness levels. It provides targeted reinforcement in the lumbar area, adapting to different body zones for optimal spinal support and greater muscle relaxation during sleep.

The gel viscoelastic upholstery adds a fresh, comfortable surface feel while reducing pressure points and enhancing thermoregulation. This is complemented by hypoallergenic fibres, the Commodo+® progressive cushioning system, Total Protect antibacterial treatment, and Felt Protect to preserve the internal structure and extend the mattress's useful life.

Available at Colchón Exprés with free delivery, installation, and removal of your old mattress. If you'd prefer the same BioCeramics® Wellness technology with an independent spring core, take a look at the Flex WBx FIT Pocket.

Who is it recommended for?

Physically active people looking for active muscular recovery during sleep through BioCeramics® FIR technology.
Sleepers who prefer a firm, stable surface with no sinking sensation.
Those with lower back pain: the Zone Support Pro® system provides targeted lumbar reinforcement across three differentiated zones.
Warm sleepers: the gel viscoelastic layer and continuous coil core promote airflow and thermoregulation.
Couples who want to share a bed without compromising on independence — available in a twin zip version.

Recommended bases

Firm upholstered bed base
Lift-up storage bed
Not recommended on flexible slatted bases or adjustable beds

Choose Options & Buy

Book a call with our experts
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.

Composición del colchón WBx FIT Multielástic

flex wbx fit multielástic mattress cross-section

Hypoallergenic Fibres
High-quality compact fibre that reduces the risk of allergic reactions and maintains a constant temperature with progressive comfort.
Gel Memory Foam
Perfect body adaptation, yielding only where pressure is applied. Gel particles provide an excellent cooling sensation and thermal comfort.
Commodo+® System
High-density material for progressive body adaptation, preventing any pressure points.
Zone Support Pro®
Firmness differentiation system with 3 distinct zones. Specific lumbar reinforcement for optimal back support and greater relaxation during sleep.
Multielástic® Continuous Spring (16 cm)
Exclusive Flex® technology. Compact double continuous wire spring unit with crossed coil. Adapts firmness and support according to the pressure applied. Elasticity, shape retention and durability above the standard.

Product technical info

Advantages

Firmness

High

Stretch Bioceramics Fabric

Very soft fabric, with high-quality lurex inserts, which incorporates the properties of photobiology, to provide the body with an increase in blood circulation, tissue oxygenation and activation of collagen production.

Encapsulated

Exterior reinforcement of the entire spring block with high-density foam that guarantees greater comfort and greater durability and resistance

Independence of beds

1.- Maximum comfort. No matter how much your partner moves, you will not feel anything that wakes you up.
2.- Provides a correct and aligned posture, regardless of weight differences, thus avoiding the uncomfortable sensation of bringing the sleeper with less weight to the center of the mattress.

Technical info

Core: Multielástic® continuous coil (16 cm)
Upholstery: Gel viscoelastic + hypoallergenic fibres
Technologies: BioCeramics®, Commodo+®, Zone Support Pro® (3 zones), Total Protect, Felt Protect
Fabric: Stretch BioCeramics® with Optigrade® thermal behaviour
Firmness: High — Comfort
Height: 30 cm
Sides: Same fabric on both sides
Independent springs: No — continuous coil system
Twin version: Available (two units joined by zip)
Hypoallergenic: Yes
Breathability: Very high
Certifications: OEKO-TEX® Standard 100
Guarantee: 3 years

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Sanitized Treatment

Sanitized® Certificate: Which guarantees that the materials used in its manufacture are respectful of humans and the environment

Member of ASOCAMA

Mattress comparison

	Colchón Flex WBx FIT Multi	Colchón Flex Fresh Cool Multielástic	Emma Diamond Cool Hybrid Mattress
		Select brand: Select model:	Select brand: Select model:
	(View product)	(View product)	(View product)
	Marca
Brand
	Firmeza
Firmness	10 / 10	10 / 10	7 / 10
	Precio
Precio	€46400	€35784	€68700
	Galardon
Galardon	-	-	Best Emma mattress for hot people
	Tejido Exterior
Tejido Exterior	Tejido Stretch BioCeramics® con Comportamiento Optigrade®	Tejido Stretch con comportamiento Fresh Cool	Funda Ultra Cooling con tratamiento PolarLuxe®
	Capas del Acolchado
Capas del Acolchado	Fibras Hipoalergénicas Viscoelástica con Gel Sistema Commodo+® Total Protect Zone Support Pro® Felt Protect	Fibras Hipoalergénicas Viscoelástica Sistema Commodo+® Total Protect Confort System+® Felt Protect	Diamond Cool® foam HRXConfort foam
	Núcleo
Núcleo	Muelle Continuo Multielástic® (16 cm)	Muelle Continuo Multielástic® (16 cm)	Pocket Spring Block
	Encapsulado perimetral
Encapsulado perimetral	Si	Si	Si
	¿Es desenfundable?
¿Es desenfundable?
	Tratamientos termorreguladores
Tratamientos termorreguladores	Viscoelástica con gel	Comportamiento Fresh Cool	Espuma Diamond Cool® con partículas de grafito que disipan el calor Tratamiento PolarLuxe® con efecto refrescante
	Transpirabilidad
Breathability	9 / 10	9 / 10	8 / 10
	¿Es idóneo para camas articuladas?
¿Es idóneo para camas articuladas?
	¿Es simétrico?
¿Es simétrico?	Si	No, Colchón de 2 caras diferentes	No, Colchón a 1 sola cara
	IMC's Recomendados
IMC's Recomendados	IMC normal IMC alto	IMC normal IMC alto	IMC bajo IMC normal IMC alto
	Soporte más recomendado para este colchón
Soporte más recomendado para este colchón	Base Tapizada, Canapé Abatible, No recomendado somier de láminas ni camas articuladas	Base Tapizada, Canapé Abatible, No recomendado somier de láminas ni camas articuladas	Base Tapizada, Camas articuladas Canapé Abatible,
	¿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	30 cm	30 cm	27 cm
	¿Cupón promocional especial activo?
¿Cupón promocional especial activo?

FAQS

What is Flex's BioCeramics® technology?: It is a textile technology that incorporates bioceramic particles into the mattress fabric, capable of emitting long-range infrared waves (FIR). These waves penetrate the body to enhance cellular hydration, activate circulation and accelerate tissue regeneration, promoting faster and more effective recovery during rest.

What firmness does the WBx FIT Multielástic have?: High firmness. A solid and stable feel with intelligent support thanks to the 3-zone system of the Zone Support Pro®.

What is the height of the mattress?: 31 cm.

What is Zone Support Pro® and what does it offer?: It is a firmness differentiation system with 3 distinct zones that provides a unique feel with targeted reinforcement in the lumbar area. It delivers optimal back support and allows the mattress to adapt differently to the various areas of the body for greater relaxation during sleep.

What is the difference between the WBx FIT Multielástic and the WBx FIT Pocket?: Both feature the same BioCeramics® fabric technology and the same comfort layers. The difference lies in the core: the Multielástic has a continuous spring system (higher overall firmness, no motion isolation) while the Pocket has individually pocketed springs (motion isolation, point-by-point contouring, medium-high firmness).

Does it have motion isolation?: No. Because it uses a continuous spring system, movement is transmitted across the surface. If motion isolation is a priority for you, we recommend the Flex WBx FIT Pocket Mattress.

Is it available as a twin/split version?: Yes. It can be made as two individual mattresses joined by a zipper. The price for the split version covers both units together.