'Bedchamber' in the Bible

The Nile will swarm with frogs, which will come up and go into your home, into your bedroom and on to your bed, and into the houses of your servants and on your people, and into your ovens and your kneading bowls.

One of his servants said, “None [of us is helping him], my lord, O king; but Elisha, the prophet who is in Israel, tells the king of Israel the words that you speak in your bedroom.”

But Jehoshabeath, the king’s daughter, took Joash the [infant] son of Ahaziah and stole him away from among the king’s sons who were being put to death, and she placed him and his nurse in the bedroom. So Jehoshabeath, the daughter of King Jehoram [of Judah] and wife of Jehoiada the priest, hid Joash from [his grandmother] Athaliah so that she did not murder him (for Jehoshabeath was the sister of Ahaziah).

Moreover, do not curse the king, even in your bedroom, and in your sleeping rooms do not curse the rich, for a bird of the air will carry the sound and a winged creature will make the matter known.