Dryer-safe, Quick-Odor-Eliminating Waterproof Mattress Pad, Single (Pro S) Nitori Two-piece set. I used to put them between the mattress and the sheets. You can dry them in the sun, but it takes a while to dry, so being able to use a dryer was very convenient. Thank you. Compatible with drum-type washing machines and coin laundries. Quickly eliminates ammonia odors, the source of unpleasant smells. Single size ● Compatible with drum-type washing machines and coin laundries ● Quickly eliminates ammonia odors, the source of unpleasant smells ● Odor-eliminating treatment (outer fabric) ● Antibacterial and odor-resistant treatment (outer fabric) ● Machine washable. ■ Composition Outer fabric: Upper layer: 100% cotton Lower layer: 100% polyester Filling: 100% polyester Inner fabric: 100% polyester (polyurethane coating) Back fabric: 100% polyester ■ Machine washable (use a net) Color: Gray Main material: COTTON Size (approx.): Width 100 x Depth 200cm