Extended use of sex dolls requires a focus on comfort, durability, and safety. The most comfortable dolls for prolonged sessions are designed with high-quality, skin-like materials that resist wear and tear while remaining soft and inviting. These dolls often feature ergonomic body shapes that support natural postures, reducing strain during use. Internal structures are reinforced with supportive frameworks that prevent fatigue and discomfort over extended periods. Additionally, many models incorporate temperature regulation features, such as heating and cooling systems, to maintain a pleasant feel throughout long sessions. Breathable, non-irritating materials are also used on surfaces that come into contact with the skin, minimizing irritation or discomfort. The weight distribution of these dolls is carefully balanced to prevent strain on joints or muscles, enhancing comfort during extended interaction. Some dolls are designed with adjustable positions or flexible joints, allowing users to find the most comfortable posture. For those seeking companionship or exploration over longer periods, investing in a doll that prioritizes comfort and durability ensures a satisfying experience without physical discomfort or fatigue.