articles such as sheets, blankets, and pillowcases used on a bed

stacking a bed on top of another bed; used as a metaphor for redundant work or needless duplication

(colloquial) to catch an adulterous couple in bed; to catch someone in the act of adultery

a scene in a movie, television show, or play that involves sexual activity; a plot point revolving around sex

to place one bed on top of another; metaphor for unnecessary repetition or redundant effort

To place a bed on top of another bed, used to describe unnecessary overlapping or pointless repetition of something that has already been done.