The emergence of realistic dolls has sparked interest in loneliness research, offering a lens into companionship, social connectedness, and human-technology interaction. Studies may explore whether these devices provide meaningful emotional support, reduce perceived isolation, or influence behavior in intimate relationships. Researchers should carefully consider ethical dimensions, including informed consent, participant well-being, and potential normalization of solitary behavior. Mixed-methods designs—combining qualitative interviews with quantitative surveys—can capture personal narratives and measurable outcomes. Attention to diverse populations, including singles, caregivers, and individuals with social anxiety, enriches understanding. Longitudinal studies are particularly valuable to assess lasting effects beyond initial novelty. It’s important to balance enthusiasm for technological comfort with awareness of risks: overreliance could impede real-world social skills, and privacy concerns must be addressed given the intimate nature of use. The field benefits from transparent reporting, replication, and interdisciplinary collaboration among psychology, sociology, and ethics scholars. Overall, these inquiries can illuminate how tools intended for companionship affect loneliness and inform healthier, holistic approaches to connection in the digital era.