The Izziwotnot Luxury Sprung Mattress is a supportive, dual sided mattress with high tensile springs, foam encapsulated for added comfort. The removable, machine washable cover is quilted for a soft finish and can be washed at 60 degrees to help prevent baby from developing allergies. The movable waterproof slip, helps to protect the mattress from little accidents and can be positioned appropriately to suit your baby. This luxurious fully sprung mattress has been designed to provide healthy, properly supported sleep. You can rest assured that this mattress is comfortable, safe and hygienic. The Izziwotnot Luxury Sprung Mattresses are free from PVC antimony, phosphorous and arsenic based chemicals, ensuring the mattresses are perfect for growing bodies.