Mattress for the Kinderkraft SOFI Travel Cot
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Frequently asked questions
Will this mattress fit the SOFI?
Yes. All mattresses shown here are sized for the Kinderkraft SOFI, which takes a 91 x 52 cm mattress. For safety, the mattress must fit snugly with no more than a 2.5 cm gap on any side. This is a UK safety requirement under BS EN 16890.
Which type of mattress is best?
Foam mattresses are lightweight, affordable, and easy to wipe clean. Pocket spring mattresses offer better airflow and support, particularly for older babies and toddlers. Natural fibre mattresses (wool, coconut coir) are breathable and hypoallergenic. All options shown have been verified to fit the Kinderkraft SOFI.
How firm should a cot mattress be?
The NHS and Lullaby Trust recommend a firm, flat mattress for babies under 12 months. A mattress that is too soft increases the risk of suffocation. All options listed here meet current UK safety standards.
Safety: Always check the mattress fits snugly with no more than a 2.5 cm gap on any side. This is a UK safety requirement (BS EN 16890). Never place additional padding, duvets, or pillows in a cot with an infant under 12 months.