The present invention relates to a washable functional pillow in which a pillow cover and pillow cotton are manufactured in one body and thus, can be washed without separating the same. Accordingly, the pillow can be effectively washed to be hygienically used. According to the present invention, the washable functional pillow comprises: a first pillow unit of which pillow cotton in an inner space of a pillow cover binds with each other by a binder to be integrated with the pillow cover; a second pillow unit which has the same structure as the first pillow unit and is detachably mounted on one side of the first pillow unit; and urethane foam which is inserted and mounted in a space formed by the first pillow unit and the second pillow unit, and applies elastic restoring force to the first pillow unit and the second pillow unit.;COPYRIGHT KIPO 2020
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