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Danish Design since 1972

Free Delivery +69 € 

FSC®-Certified Wood
REBUILD

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Mattress Extension Piece, 70x30 cm

€39,00

20% Off Mattresses with a Bed Purchase!
  • Description
  • Specifications
  • SHIPPING & RETURNS

Add this mattress extender to your child’s FLEXA Baby Mattress (sold separately) and you get a junior sized mattress.

This mattress extension piece has a two-layered, top-quality foam core and a removable cover made from 100% cotton. Just like your child’s existing baby mattress, this extension piece features a breathable, waterproof mattress protector that you can easily zip on and off.

All is OEKO-TEX® STANDARD 100 certified – your guarantee that this mattress extension piece has been thoroughly tested and found completely free of harmful substances.

Width: 70 cm

Height: 10 cm

Length: 30 cm

Weight: 0.9

Materials: Foam , Polyester , Cotton

Mattress Size: 70x30

Assembled: Yes

Care Instructions: Machine wash 40C

Color: White

Design Color: White

Warranty: 2 years

Item Number: 83-10549

Packages: 83-10549

Certificates: OEKO-TEX

  • Smaller items ship home via GLS or to a pick-up point if you're not home.
  • Heavier items arrive curbside on a pallet via Dachser, and you’ll be contacted via email and SMS to arrange a delivery time that suits you.

Easy 14-day returns (return costs vary). Refunds are processed after inspection.

For details, visit our Shipping & Return Policy.

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WHICH MATTRESS SHOULD I CHOOSE?

DREAM - FOAM

A soft and breathable foam mattress designed for younger children. Provides gentle support and pressure relief while keeping the sleep surface cool and fresh.

  • Gentle Support: Medium firmness for soft, cozy sleep.
  • Breathable Foam: Air channels prevent overheating.
  • Safe Sleep Surface: Oeko-Tex® certified, hypoallergenic cover.
  • 100-Night Sleep Trial: Try it at home, risk-free

SHOP NOW

BALANCE - SPRING

A reversible spring mattress with dual comfort zones. Firm HR foam for younger children and soft memory foam for older kids, supported by pocket springs for targeted support.

  • Dual Comfort Design: Firm HR foam for support, soft memory foam for pressure relief.
  • Pocket Spring Core: Reduces motion transfer and provides stable support.
  • Cooling Airflow: Ventilation channels maintain a fresh sleep surface.
  • 100-Night Sleep Trial: Try it at home, risk-free
SHOP NOW

BLOOM - LATEX

A premium, dual-sided latex mattress for children with sensitive skin. Combines hypoallergenic natural latex with firm HR foam for optimal support and cooling comfort.

  • Allergy-Friendly Latex: Naturally resists dust mites and allergens.
  • Cooling Ventilation: Air channels keep the mattress fresh and breathable.
  • Reversible Design: Soft latex for younger kids, firm HR foam for older children.
  • 100-Night Sleep Trial: Try it at home, risk-free
SHOP NOW
Related products

Certified Materials

FLEXA uses FSC® and PEFC® certified wood and OEKO-TEX® textiles – safe and kind to your child.

We Grow Together

FLEXA furniture grows with your child – modular, durable, and made to last for generations.

FLEXA Since 1972

For 50+ years, FLEXA has blended Danish design, safety & quality – helping kids sleep, play, and learn.

About flexa

DANISH DESIGN SINCE 1972

For over 50 years, FLEXA has crafted beautifully designed, European-made furniture that grows with your child. From adaptable beds and smart storage to playful wooden toys, we create spaces that spark imagination and development.

One Bed – Endless Possibilities
Why replace when you can rebuild? FLEXA beds transform from toddler to teen, evolving into bunk beds, play areas, or study spaces—designed for flexibility, durability, and sustainability.

Designed to Grow – Built to Last
Made from FSC®-certified wood and non-toxic materials, FLEXA furniture is safe, beautiful and built for generations.

Read more

DANISH DESIGN SINCE 1972

Free Delivery +69 €

FSC®-Certified Wood