Fine Bedding Company Spundown Small Double Mattress Protector. The Fine Quality Micor Polyester filling means this mattress protectore can be washed at home at a dustmite busting 60 °c, while retaining its quality wash after wash. The elasticated skirt ensures it fits any depth of mattress, and the micro polyester cover provides a beautifully soft finish for increased comfort. The most hygenice option, that cambines convenience with soft, comforting protection. 100% polyester cover, 100% polyester filling.