Serena Junior Bed Extension Mattress

Serena Junior Bed Extension Mattress

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Pairs well with


About the Serena Junior Bed Extension Mattress


The Gaia Baby Junior Bed Extension Mattress piece is designed to extend your Cot Bed mattress from 140cm to 165cm for kids up to 10yrs.

Known for its incredible softness, the luxurious, peach touch microfibre fabric is anti-microbial, hypoallergenic and softly quilted.

A tight fit between fibres helps aid longevity and allows the fabric to keep it's shape and colour over time.

Nursery Grade Foam Core - Specifically designed for the nursery industry and free from harmful chemicals, this adaptive foam cradles your child safely, providing comfort, support and breathability, so you can rest assured your little one is sleeping safe and snug all through the night.

Zip-off cover - Quick drying and machine washable at 40 degrees. Tightly woven fibres help repel stains. Wipeable to help keep your mattress clean and dry at all times.

Helps keep your child comfortable and cool by promoting natural airflow. Features a breathable microfibre fabric cover and an open cell nursery foam core to maintain an ideal sleeping climate.
  • Known for its incredible softness, the luxurious, peach touch microfibre fabric is anti-microbial, hypoallergenic and softly quilted.
  • A tight fit between fibres helps aid longevity and allows the fabric to keep it's shape and colour over time.
  • Nursery Grade Foam Core - Specifically designed for the nursery industry and free from harmful chemicals, this adaptive foam cradles your child safely, providing comfort, support and breathability, so you can rest assured your little one is sleeping safe and snug all through the night.
  • Zip-off cover - Quick drying and machine washable at 40 degrees. Tightly woven fibres help repel stains. Wipeable to help keep your mattress clean and dry at all times.
  • Helps keep your child comfortable and cool by promoting natural airflow. Features a breathable microfibre fabric cover and an open cell nursery foam core to maintain an ideal sleeping climate.

This is a mattress extension piece meant to be used with Serena Modular Mattress

Assembled Dimensions:

  • Length: 40 cm
  • Width: 66 cm
  • Height: 10 cm
  • Weight: 0.8 kg

Box Dimensions:Your Serena Junior Bed Extension will come in 1 box!

  • Length: 42 cm
  • Width: 68 cm
  • Height: 12 cm
  • Weight: 0.9 kg

All our mattresses are designed and manufactured to comply with the General Product Safety Regulations 2005 and UK Furniture and Furnishings (Fire Safety) Regulations 1988/1989, 1993 and 2010.


Crib, cot and cot bed mattresses are tested to BS 7177:2008+A1:2011 and BS EN16890:2017.+A1:2019This mattress is also fully certified toSI 316/1995.

Take a look at all of the frequently asked questions here.

Frequently Asked Question's

The extension mattress is custom designed to fit seamlessly with the Serena Cot Bed mattress, extending it to accommodate a Junior Bed configuration. It fits securely at the foot end of the cot bed mattress to create a larger sleeping area.

The mattress piece is custom sized to fit perfectly with the Serena Cot Bed mattress. For exact dimensions, please refer to the 'dimensions' tab above.

No, the Junior Bed Extension Mattress is designed specifically to extend the Serena Cot Bed mattress. It is not intended for use on its own.

The extension mattress is custom designed to fit the Serena Cot Bed mattress. It may not be compatible with other cot beds or mattresses. Ensure it is used only with the Serena Cot Bed for a proper fit.

This mattress is made in the UK, adhering to high manufacturing standards for quality and safety.