ויקרא, פרק ט״ו, פסוק כ״ז

The laws of impurity extend beyond a person's physical body, reaching into the everyday environment and the objects they interact with. Anyone who comes into contact with items, furniture, or bedding that a menstruating woman has laid or sat upon contracts this impurity. To restore purity, the affected individual must wash their clothes and bathe in water [ביאור שטיינזלץ].

The scope of this impurity is notably broad. While other laws might exclude minor or secondary parts of a piece of furniture, the consensus is that even the attachments of these objects are fully included. Touching anything connected to the bed or seat, such as an extending rope or hanging threads, transfers impurity just as strongly as touching the main object itself [תורה תמימה, חזקוני, אדרת אליהו].

Although the law specifically details the consequences of touching these beds and seats, it remains silent about carrying or leaning on them. This omission is not an exemption. Instead, the impurity caused by carrying or leaning on these items is already clearly understood from the broader context of the impurity laws discussed throughout the section [רלב״ג].