Dog mattress with breathable waterproof function, size 90 x 70 x 6cm. - Brand: OSHIN - Series: Fine-Air - Size: 90 x 70 x 6cm - Features: Breathable waterproof mattress - Color: Light Blue - Back Material: Mesh Thank you for viewing. I purchased this about a year and a half ago for my dog who had a herniated disc. I used it for about 3 months, and the main body was washed once, and the cover was washed several times (the cover was washed and stored). The cover was waterproof, which was convenient. There are a few stains that didn't come out in the wash. I think it helped prevent bedsores.