PROBLEM TO BE SOLVED: To provide a leg warmer for allowing a user to sleep in a warm state by protecting cold legs with the use of a bag in a bed in cold winter since there are many cases where a person goes to sleep with cold legs or cannot sleep well due to the cold legs after getting up and going to the toilet and the like at night.SOLUTION: Coldness of legs is prevented by using a thin, lightweight, and warm chemical fiber blanket. A thin silicon plate is used for a mouth of a bag, and then, legs are easily put in and taken out.COPYRIGHT: (C)2013,JPO&INPIT【課題】冷えた足のまま寝たり、夜中トイレ等に起きた後足が冷たく寝むれない事が多々ある。本発明は、寒い冬布団の中で袋を使用する事で冷たい足を保護し、温かく寝むる事が可能になった足温具を提供する。【解決手段】薄く軽く温かい化繊の毛布を使用して足の冷えを防ぎ、シリコンの薄い板を袋の入口に使用し、足の出し入れを容易にした事を特徴とした。【選択図】図1