New Rectangle Poly Cotton Cozy Cave Shape from Snoozer! Dogs have always loved our round Cozy Caves - So we decided to offer them in rectangles, square, and for standard crate dimensions. Our poly/cotton Cozy Cave® hooded dog bed gives pets a cozy place to stay warm, and comfortable, and catch some shut-eye. Often referred to as a nesting dog bed, these Cozy Caves have a soft Sherpa interior and are perfect for all pets who enjoy the feeling of staying under the covers and being almost completely enclosed. The removable cover is machine washable and super durable. The cedar/poly filling provides sumptuous comfort and reduces odor.