KAS Kopenhagen Mattress Extension – Extend Your Kai Cot Comfortably

The KAS Kopenhagen Mattress Extension is designed to transform your Kai Babycot into a comfortable junior bed. This extension piece pairs perfectly with the standard Kai mattress, creating a longer, seamless sleeping surface that supports your growing child.

Kas Kopenhagen – Scandinavian elegance for the modern family
At Akomo Kids, we proudly present Kas Kopenhagen – a Danish design brand that blends timeless aesthetics with refined craftsmanship and natural materials. Each piece brings calm, harmony and Scandinavian simplicity into your home. Thanks to FSC-certified wood, minimalist silhouettes and warm tones, families across the Netherlands, Germany, Belgium and the rest of Europe choose Kas Kopenhagen for its long-lasting beauty and functionality.
The Kai Collection – complete baby room in crème, white & oak
The Kai Collection stands among the most iconic and most beloved designs from Kas Kopenhagen. It unites Scandinavian elegance with practical features and natural materials, creating a serene atmosphere in every nursery. With its crème, white and oak finish, the collection enhances any interior with softness and balance.

The collection consists of a baby cot, a dresser and a wardrobe. The dresser includes two cabinets, three spacious drawers and an optional changing unit that you can easily remove once your child grows older. Meanwhile, the Kai wardrobe offers multiple shelves, a hanging rail, tapered legs and invisible screws, resulting in a beautifully clean and modern look.

At Akomo Kids, you benefit from exclusive Kai bundles with attractive discounts. Moreover, all items come directly from stock, which allows us to organise fast delivery throughout Europe.
The Eli Collection – grows from toddler bed to single bed
The Eli Collection brings flexibility, longevity and warm Scandinavian charm into your child’s room. Made from solid oak, the Eli junior bed evolves step by step: you can extend it to a full-size single bed (90 × 200 cm) or convert it into a daybed or combi bed by adding or removing bed ends. This adaptability ensures that the bed grows along with your child’s needs.

You can also customise the design. Some families prefer a clean, minimal look without a backrest, while others choose the variation with a backrest for extra comfort. Either way, the Eli bed becomes an elegant centrepiece in every modern kids’ room.
Complete the Look – matching accessories & thoughtful details
Kas Kopenhagen provides a wide variety of accessories that complete a nursery in a stylish and harmonious way. Additionally, these items create a practical environment that supports everyday routines.

Accessories such as changing cushions and
changing pads,
which fit the Kai wall-mounted changing table perfectly.
Wall shelves like the
Eli shelf,
crafted from solid oak with invisible mounting. They offer beautiful space for books, toys or decorative pieces.
Textiles such as 100% organic cotton fitted sheets with matching covers and high-quality YKK zippers.

Sustainable craftsmanship & Scandinavian quality
Kas Kopenhagen designs combine sustainable materials with durable construction. The brand focuses on FSC-certified wood, non-toxic finishes and a clean aesthetic that suits modern family homes. Whether you place these pieces in a Dutch townhouse, a German family home or a Belgian minimalistic interior, they elevate the room with natural elegance and practicality.
Experience the brand in our showroom – with free delivery & assembly
In the Akomo Kids showroom in Zwaag, you can explore all furniture up close. You can feel the materials, compare colours and receive personal styling advice tailored to your home and lifestyle. This direct experience helps families choose the perfect combination for their child’s room.

After making your selection, our delivery team takes care of everything. We provide free delivery and professional assembly throughout the region. Our specialists carefully install each item, adjust it for perfect stability and place it exactly where you want it. As a result, your new interior is ready for use immediately.
Your Benefits at Akomo Kids

Personal showroom advice tailored to your needs
Items available directly from stock
Exclusive bundle discounts on all Kas Kopenhagen items
Fast delivery within Europe
Free delivery & professional assembly
Precise finishing and perfect placement in your home
Instant enjoyment of your new interior

Discover the timeless beauty of Kas Kopenhagen – a brand where Scandinavian design, sustainability and craftsmanship come together. Many families appreciate its exceptional quality, thoughtful details and harmonious designs that enrich every room.

Now at Akomo Kids: free delivery and free assembly.
Would you like to experience the quality in person? Visit our showroom in Zwaag.

KAS Kopenhagen, KAS Kopenhagen

Kas Kopenhagen – Baby Mattress Extender for Kai Baby Cot

Extend your Kai Cot into a junior bed with the KAS Kopenhagen Mattress Extension. Made from ventilated cold foam with a soft, washable cotton velour cover.

Furniture, Living, Mattresses, Mattresses & Sheets

€ 80,00

Available on backorder

Delivery time: 1-2 weeks

KAS Kopenhagen Mattress Extension – Extend Your Kai Cot Comfortably

Easy Extension for the Kai Cot

Simply place the mattress extension at the foot of the current mattress to extend the bed length. This practical addition ensures a snug fit and a consistent sleep experience as your child transitions from baby to toddler.

Cold Foam Core with Vertical Air Channels

The interior is made from high-quality cold foam, known for its durability and supportive comfort. Integrated vertical air channels promote airflow and wick away moisture, helping your child stay cool and dry throughout the night.

Soft and Breathable Cotton Velour Cover

The extension is wrapped in a premium quilted cotton velour cover made from 100% cotton. The breathable material helps regulate temperature and provides a soft, cozy surface for restful sleep. A durable YKK zipper allows for easy removal of the cover, which is washable at 60°C.

Made in Denmark, Certified for Safety

Reversible and built to last, this mattress extension is produced in Denmark and complies with the strict EN16890:2017 safety standard for children’s mattresses. It is delivered rolled and will regain its full shape and size within 48 hours after unpacking.