The term WENT TO BED can be broken down into two crossword solutions: RETIRED (7 letters) and SANK (4 letters). RETIRED is a term used to describe someone who has stopped working, usually due to age or health reasons. SANK is an action verb meaning to go down or descend, often in reference to a ship or other object. Therefore, the phrase WENT TO BED can be interpreted as someone retiring or descending for the night.