This mattress protector features a super absorbent cotton terry towelling sleep surface, which is perfect for heavy accidents and spills, whilst protecting from allergens, dust mites, and bacteria and mould- Natural cotton terry- Best for heavy accidents and spills (Up to 1.8L absorption on a Queen)- Completely waterproof, thanks to the unique, silent and breathable Miracle LayerTM- Protection against dust mites, asthma and allergens- Australian Made and Owned- Approved by the National Asth