Proper maintenance and cleaning are essential for the longevity and hygiene of your couples sex doll. After each use, gently wash the doll with warm water and a mild, non-abrasive soap or a specialized cleaner designed for such products. Pay special attention to intimate areas, ensuring all residues are thoroughly removed. Dry the doll completely using a soft cloth, and consider applying a renewal powder or cornstarch to keep the skin feeling realistic and smooth. Store the doll in a cool, dry place, preferably in a designated storage bag or box to prevent dust accumulation and damage. Check joints and movable parts regularly for wear or looseness, and tighten or repair as needed. Regular maintenance not only prolongs the lifespan but also ensures a safe, hygienic experience every time.