'Bed' in the Bible

but there is a God in heaven that revealeth secrets, and he hath made known to the king Nebuchadnezzar what shall be in the latter days. Thy dream, and the visions of thy head upon thy bed, are these:

as for thee, O king, thy thoughts came into thy mind upon thy bed, what should come to pass hereafter; and he that revealeth secrets hath made known to thee what shall come to pass.

I saw a dream which made me afraid; and the thoughts upon my bed and the visions of my head troubled me.

Thus were the visions of my head upon my bed: I saw, and, behold, a tree in the midst of the earth; and the height thereof was great.

I saw in the visions of my head upon my bed, and, behold, a watcher and a holy one came down from heaven.

In the first year of Belshazzar king of Babylon Daniel had a dream and visions of his head upon his bed: then he wrote the dream and told the sum of the matters.