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Home / Shop / Living / Furniture / Mattresses & Sheets / Mattresses / Kas Kopenhagen – Baby Mattress Extender for Kai Baby Cot – Premium

KAS Kopenhagen Premium Baby Mattress – Ultimate Comfort for the Kai BabyCot

Give your baby the very best start in life with the KAS Kopenhagen Premium Baby Mattress, designed exclusively to fit the Kai BabyCot. This mattress offers a unique combination of superior comfort, safe materials, and advanced sustainability – developed to support healthy sleep from the very beginning.

Kai Collection by KAS Kopenhagen

The Kai Collection is one of our most popular lines. This collection perfectly combines Scandinavian design, natural materials and smart multifunctional solutions.

The Kai Collection is characterized by timeless and elegant Scandinavian design that brings calm and balance to the children’s room. Furniture pieces like the Kai dresser feature two cabinets, three spacious drawers and an optional changing unit — which can easily be transformed into a regular dresser as your child grows.

The Kai wardrobe is also designed with functionality in mind: multiple shelves, a hanging rail, the signature tapered legs and invisible screws.

Discover the Eli Collection

The Eli Collection stands out with its use of solid oak, a warm natural look and exceptional flexibility. For example, the junior bed can be extended to a full-size bed (90×200 cm) or transformed into a daybed or combi bed by adding or removing bed ends.

Complete the Look

In addition to these two main collections, KAS Kopenhagen also offers other products to complete your room:

  • Accessories such as changing cushions and changing pads that fit perfectly with the Kai wall changing table.
  • Wall shelves like the Eli shelf made of solid oak with invisible mounting — ideal for books, toys or decorations.
  • Textiles such as fitted sheets made of 100% organic cotton, often with matching fabric covers and YKK zippers.

Free Delivery and Assembly

You can view all KAS Kopenhagen furniture and accessories for free in the Akomo Kids showroom – a place where you can truly feel the quality, compare materials and get personal advice on design and combinations.

Found your favorites? Akomo Kids also takes care of free delivery and professional assembly at your home. You don’t have to lift a finger – your furniture will be carefully installed, perfectly adjusted and ready for use.

Your Benefits

  • Personal advice in the showroom
  • Available from stock
  • Free delivery & assembly by professionals
  • Perfect finish and placement
  • Enjoy your new interior right away!

Discover the timeless elegance of KAS Kopenhagen – where Scandinavian design, craftsmanship and sustainability meet. Our customers value the quality and beautiful designs of KAS Kopenhagen, practical and stylish for every home.

Now: free delivery and assembly at Akomo Kids. Prefer to experience the quality in real life? Visit our showroom in Zwaag.

Kas Kopenhagen – Baby Mattress Extender for Kai Baby Cot – Premium

The KAS Kopenhagen Premium Mattress features a unique 2-layered design, offering tailored support for both babies and toddlers. Unlike the regular version, it’s made from PureBio foam with a TENCEL® cover, providing enhanced comfort, breathability, and up to 74% lower CO₂ emissions – the perfect eco-upgrade for growing children.

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€ 110,00

Available on backorder

Delivery time: 1-2 weeks

KAS Kopenhagen Premium Baby Mattress – Ultimate Comfort for the Kai BabyCot

Give your baby the very best start in life with the KAS Kopenhagen Premium Baby Mattress, designed exclusively to fit the Kai BabyCot. This mattress offers a unique combination of superior comfort, safe materials, and advanced sustainability – developed to support healthy sleep from the very beginning.

PureBio Foam – Sustainable Innovation for Your Baby’s Sleep

At the heart of the Premium Baby Mattress lies KAS Kopenhagen’s revolutionary PureBio foam. This next-generation foam is created using organic waste instead of fossil resources, following a certified 100% Biomass Balance approach. The result? A high-resilience, breathable material that adapts gently to your baby’s body, offering optimal support throughout every sleep stage.

Unlike conventional PU foam, PureBio foam reduces CO₂ emissions by up to 74% – making this mattress an eco-conscious choice for modern families who care about their child’s comfort and the planet’s future.

Perfect Airflow and Long-Lasting Comfort

The mattress’s structure encourages effective air circulation to prevent overheating and moisture build-up. This keeps your baby comfortable all night long – whether it’s summer or winter. And with a generous 5-year sagging guarantee, the Premium Baby Mattress maintains its shape and supportive qualities far beyond infancy.

Luxuriously Soft TENCEL® Cover – Breathable and Antibacterial

The mattress is wrapped in a premium, removable cover made from **TENCEL®** – a silky-smooth, FSC-certified fabric derived from wood pulp. TENCEL® is naturally antibacterial, moisture-regulating, and breathable, helping to create a clean and hygienic sleep environment for your baby.

The cover is machine washable at 40 °C, ensuring easy maintenance and lasting freshness – no harsh chemicals, no synthetic fibers, just pure softness against your baby’s skin.

Made to Fit the KAS Kopenhagen Kai BabyCot

Designed to fit seamlessly inside the Kai BabyCot, this premium mattress delivers both form and function. It provides the perfect balance of firmness and cushioning – essential for safe baby sleep – while complementing the Kai cot’s minimalistic, Scandinavian aesthetic.

Why Choose the KAS Kopenhagen Premium Baby Mattress?

  • Specially made for the Kai BabyCot by KAS Kopenhagen
  • High-resilience PureBio foam for ergonomic support
  • Up to 74% less CO₂ emissions compared to PU foam
  • Removable TENCEL® cover – breathable, antibacterial, washable
  • Ventilated design for optimal airflow and moisture control
  • 5-year sagging warranty for long-term quality
  • Non-toxic, chemical-free materials – safe for newborns

Invest in sleep that’s as gentle on your baby as it is on the planet.

Attributes Value
Age

Junior (3-6), Toddler (1-3)
Certificate

FSC
Color

White
Material

TENCEL®
Wash

40 °C

KAS Kopenhagen Premium Baby Mattress – Ultimate Comfort for the Kai BabyCot

Give your baby the very best start in life with the KAS Kopenhagen Premium Baby Mattress, designed exclusively to fit the Kai BabyCot. This mattress offers a unique combination of superior comfort, safe materials, and advanced sustainability – developed to support healthy sleep from the very beginning.

Kai Collection by KAS Kopenhagen

The Kai Collection is one of our most popular lines. This collection perfectly combines Scandinavian design, natural materials and smart multifunctional solutions.

The Kai Collection is characterized by timeless and elegant Scandinavian design that brings calm and balance to the children’s room. Furniture pieces like the Kai dresser feature two cabinets, three spacious drawers and an optional changing unit — which can easily be transformed into a regular dresser as your child grows.

The Kai wardrobe is also designed with functionality in mind: multiple shelves, a hanging rail, the signature tapered legs and invisible screws.

Discover the Eli Collection

The Eli Collection stands out with its use of solid oak, a warm natural look and exceptional flexibility. For example, the junior bed can be extended to a full-size bed (90×200 cm) or transformed into a daybed or combi bed by adding or removing bed ends.

Complete the Look

In addition to these two main collections, KAS Kopenhagen also offers other products to complete your room:

  • Accessories such as changing cushions and changing pads that fit perfectly with the Kai wall changing table.
  • Wall shelves like the Eli shelf made of solid oak with invisible mounting — ideal for books, toys or decorations.
  • Textiles such as fitted sheets made of 100% organic cotton, often with matching fabric covers and YKK zippers.

Free Delivery and Assembly

You can view all KAS Kopenhagen furniture and accessories for free in the Akomo Kids showroom – a place where you can truly feel the quality, compare materials and get personal advice on design and combinations.

Found your favorites? Akomo Kids also takes care of free delivery and professional assembly at your home. You don’t have to lift a finger – your furniture will be carefully installed, perfectly adjusted and ready for use.

Your Benefits

  • Personal advice in the showroom
  • Available from stock
  • Free delivery & assembly by professionals
  • Perfect finish and placement
  • Enjoy your new interior right away!

Discover the timeless elegance of KAS Kopenhagen – where Scandinavian design, craftsmanship and sustainability meet. Our customers value the quality and beautiful designs of KAS Kopenhagen, practical and stylish for every home.

Now: free delivery and assembly at Akomo Kids. Prefer to experience the quality in real life? Visit our showroom in Zwaag.

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