Serena Cot Bed Extension Mattress (1pce+cover)
Serena Cot Bed Extension Mattress (1pce+cover)
Serena Cot Bed Extension Mattress (1pce+cover)
Serena Cot Bed Extension Mattress (1pce+cover)

Serena Cot Bed Extension Mattress (1pce+cover)

SKU: GSM-MINIEXT

Serena Cot Bed Extension Mattress (1pce+cover)

SKU: GSM-MINIEXT
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About the Serena Cot Bed Extension Mattress


The Serena Mini Cot Extension Mattress is a fully pocket sprung mattress section which comes supplied with a cot bed-sized zipped cover. This mattress piece is added to your Mini Cot mattress to make a full-size mattress for use in Serena Cot Bed mode. 

Featuring a soft quilted fabric, the mattress is extremely breathable and encourages a natural airflow to help maintain a comfortable sleeping climate for your baby. Its individual high tensile pocket springs encapsulated in nursery-grade foam provide responsive comfort and optimal body support so your little one can sleep easily. The adaptive springs react to your baby’s movement and growth; providing targeted support for the perfect level of comfort.

Machine washable at 40°, wipeable, water-resistant & certified latest BS & EN safety standards.

  • Not for separate use. Can only be used as an extension to the Serena Mini Cot mattress
  • Premium quality pocket sprung mattress featuring soft quilted fabric
  • Individual high tensile springs offer responsive comfort and support
  • Breathable and encourages a natural airflow to maintain comfortable temperature while sleeping
    Features a water-resistant Kidtech reverse side
  • Zip off cover - quick drying and machine washable at 40°. Wipeable and water resistant to help keep your mattress clean and dry at all times

  • Length: 42.5 cm
  • Width: 66 cm
  • Height: 10 cm
  • Weight: 1.4 kg

Box Dimensions: Your Serena Mini Cot Mattress will come packaged in 1 parcel.

  • Length: 44 cm
  • Width: 68 cm
  • Height: 12 cm
  • Weight: 1.5 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.


Fully certified to BS EN 16890, BS 7177:2008+A1:2011 & SI 316/1995

Frequently Asked Questions

The Serena Mini Cot Extension Mattress is designed to extend the Serena Mini Cot Mattress to a full-size mattress for use in Cot Bed mode. It is not intended for use on its own but as an extension to the existing Mini Cot mattress.

The Extension Mattress features individual high tensile pocket springs encapsulated in nursery-grade foam, offering responsive comfort and optimal body support. It has a soft quilted fabric, is highly breathable, and includes a water-resistant Kidtech reverse side.

The pocket-sprung system provides responsive comfort by allowing each spring to move independently. This adapts to your baby’s movements and growth, offering targeted support and maintaining a comfortable sleeping environment.

Yes, the mattress features a soft quilted fabric that is highly breathable, encouraging natural airflow to help maintain a comfortable sleeping climate for your baby.

The mattress extension comes with a zipped cover that is machine washable at 40°C. The mattress itself is wipeable and water-resistant, making it easy to keep clean and dry.

The Serena Mini Cot Extension Mattress is certified to the latest safety standards, including BS EN 16890, BS 7177:2008+A1:2011, and SI 316/1995, ensuring it meets rigorous safety and quality requirements.

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

No, the mattress extension is designed specifically for use with the Serena Mini Cot Mattress to extend it to a full-size mattress. It is not suitable for use with other cots or beds.

The Serena Mini Cot Extension Mattress offers premium quality with its pocket-sprung system for responsive support, breathable fabric for comfort, and easy maintenance features. Its ability to seamlessly extend the Mini Cot Mattress into Cot Bed mode makes it a practical choice for growing babies.
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