This hugely popular mattress protector has a soft and absorbent cotton rich and polyester terry towelling upper fabric. The breathable but waterproof polyurethane backing provides ultimate protection for the mattress and optimum dry sleep support. A deep 40cm fitted skirt will ensure minimal movement and provides superior protection for your mattress. Machine washable. Handy Hint – For children prone to bed wetting place a second Dry Sleep protector over the first so when accidents happen you only need to strip the top protector off and replace the sheet rather than remake the whole bed.