All deep cushion beds are machine washable without changing shape or going lumpy. You can buy them with removable covers or without. The deep cushion bed is designed to give maximum comfort in summer and winter. The special Thermalfil filling is cool in summer and warm in winter also has the ability to dry wet dogs and its self, making it a good all round bed.
Basic Deep Cushion Beds in Regular Fabric Machine washable will not go lumpy