The yutampo—Japan’s traditional hot water bottle—was once seen as old-fashioned. Today, it’s making a comeback as a simple, eco-friendly way to stay warm in winter. No electricity, gentle heat, and a cozy bedtime ritual—this is why many people are rediscovering it. What Is a Yutampo? A yutampo is a heat-resistant container filled with hot (not boiling) water and placed in a bed before sleep. It pre-warms the futon and makes falling asleep easier—especially if your feet tend to feel cold. Why It’s Back: Comfort × Eco No electricity: Just hot water. Lower bills, smaller footprint. Softer warmth: Doesn’t ...
