'Bed' in the Bible

Now when they came into the house, as he lay on his bed in his bedchamber, they smote him, and slew him, and beheaded him, and took his head, and went by the way of the Arabah all night.

How much more, when wicked men have slain a righteous person in his own house upon his bed, shall I not now require his blood of your hand, and take you away from the earth?

And it came to pass at eventide, that David arose from off his bed, and walked upon the roof of the king's house: and from the roof he saw a woman bathing; and the woman was very beautiful to look upon.

And when David had called him, he did eat and drink before him; and he made him drunk: and at even he went out to lie on his bed with the servants of his lord, but went not down to his house.

And Jonadab said unto him, Lay thee down on thy bed, and feign thyself sick: and when thy father cometh to see thee, say unto him, Let my sister Tamar come, I pray thee, and give me bread to eat, and dress the food in my sight, that I may see it, and eat it from her hand.