This sprung mattress is made with Combustion Modified High Resilience Foam and traditional springs to comply with Government Regulations of Ignition and comes with all the relevant BS standards. It is free from antimony, phosphorous or arsenic fire retardant chemicals. Always ensure a good close fit of the mattress in the cot. Air all bedding, in particular the mattress, as frequently as possible. Mattresses are breathe through. The cover is fully overlocked and is made from deluxe quilted coroquilt. It is recommended that you turn your mattress frequently. Mattress Dimensions: H.12 x W.70 x D.140cm. Features 2cm inner air foam pad for extra comfort and lets the mattress breathe Open coil springs Chemical free (see list in description) Anti dust mite material Quilted cover 100% Hypoallergenic Can be rotated to prolong its use Made in the UK Meets the Government Regulation of Ignition standards Please note: We have 2 different mattress suppliers. The specifications are the exact same, but the outside material may look different than what the pictures show depending on our supply at the time.