Waterproof polyurethane coated flannelette mattress protector with pur essential treatment treatment based on natural active ingredients that help to combat dust mites damp bacteria and allergic reactionsflannelette fitted mattress cover coated in polyurethane for a waterproof finishbrushed flannelette 145gm 70 recycled cotton taken from scrap industrial textiles to reduce both waste and the impact on the environment 30 polyester sleep side pure recycled cottonpur essential t