כָּל־הַמִּשְׁכָּ֞ב אֲשֶׁר־תִּשְׁכַּ֤ב עָלָיו֙ כָּל־יְמֵ֣י זוֹבָ֔הּ כְּמִשְׁכַּ֥ב נִדָּתָ֖הּ יִֽהְיֶה־לָּ֑הּ וְכָֽל־הַכְּלִי֙ אֲשֶׁ֣ר תֵּשֵׁ֣ב עָלָ֔יו טָמֵ֣א יִהְיֶ֔ה כְּטֻמְאַ֖ת נִדָּתָֽהּ׃
Every bed whereon she lieth all the days of her issue shall be unto her as the bed of her impurity; and every thing whereon she sitteth shall be unclean, as the uncleanness of her impurity.
Read kabbalistic (mystical) interpretation of Leviticus 15:26: and classical mystical sources.