The bed's sleep surface is made of Microtec which is a fabric created using a special patented wearing and processing technique. The result is a breathable, super soft, microfiber material with a luxurious supple touch. Our bed is hand filled with extra comfort fill and side bolsters for cozy softness. Plus, we've added a non-skid bottom to help keep your bed in place. The removable zippered cover is machine washable.Cesar's tip: "Giving comfort and affection to a dog when it displays nervousness, fear, or aggression will nurture the unwanted behavior."