Keep your mattress from sagging and slumping. Made to go between a mattress and its base, our low-profile Bunkie Board adds durable, sturdy support for your bed, evenly distributes body weight for better sleep, and prolongs the life of your mattress. The 1.5-inch-thick foundation features solid wood slats for optimal airflow and an organic cotton canvas cover. Perfect for trundle beds, bunk beds, day beds, and bed frames that lack proper support.