For all seasons, a calming dog bed is made of cuddly yet resilient synthetic polyester filling that will keep its shape over time. Oxford cloth is used for the base of the pet sofa to boost durability and be portable. It is a dog and cat bed that is machine washed and air dry to prevent dirt, bacteria, and disagreeable odors with routine cleanings before machine washing, look for damage if found, and do not machine wash with the medium size.