1. For sleeping, you can use it as both a normal neck pillow and a couple arm pillow, reduce arm pressure and provide head support for long night sleep. 2. Unlike other arm pillows, it has a support frame that provides the best support, maintains the original shape and withstands pressure. 3. The contoured arch design sweet couple pillow provides the best support for your partner's neck and head, and the hollow tunnel design leaves room for your arm. 4. 100% pure breathable memory foam, keeps its original shape, soft but firm enough for support, great material as pillow filling, provides max.protection for neck, arm, head and other contact parts. 5. Silk-like fabric pillowcase and full polyester pillowcase, both are breathable and skin-friendly materials.Invisible zipper allows the cover to be removed for washing to keep it fresh.