This junior 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 quilte