Matthew McConaughey had some sweet advice for married couples in a new poem titled "Smaller Beds." "The best thing you can / do for your / marriage," the actor wrote in his new poetry book titled Poems & Prayers which hit shelves on Tuesday, September 16. "One way to surely / get ahead, / is get rid of that / king-­size mattress, / and sleep in a / queen-­size bed." McConaughey must be speaking from experience, as he's been married to wife Camila Alves since 2012. The couple share three kids: Levi, 17, Vida, 15, and Livingston, 12.