'Bed' in the Bible

For the bed is too short to stretch oneself on, and the covering too narrow when he would wrap himself in it.

Upon a lofty and high mountain hast thou set thy bed: even thither didst thou go up to offer sacrifice.

Behind the doors also and the posts hast thou set up thy remembrance: for apart from me, thou hast uncovered thyself, and art gone up; thou hast enlarged thy bed, and hast made agreement with them; thou lovedst their bed, thou sawest their nakedness.