“Wood strip beneath a mattress” crossword clue

Reveal the answer to see why it works and where this clue has appeared before.SLAT is the answer to the New York Times crossword clue “Wood strip beneath a mattress”. It was last seen in the puzzle of July 7, 2025, where it runs at 56 Down and fills 4 squares. It crosses 4 other entries in that grid — those are listed below and are the quickest way to confirm the letters you already have.