PRICES MAY VARY. The bed board adds extra support, which helps prevent the mattress from sagging and brings vitality to the old uncomfortable mattress The bed board under the mattress provides a low profile solution that can maintain the firmness of the mattress without increasing the volume or height of traditional box springs The mattress stand is foldable, easy to store and pack, lightweight, suitable for travel Undermattress support is ideal for children's beds, bunk beds, sleeping sofa mattresses, pull-out beds, sofa beds or beds with support Flat noodles The total size of the double-layer baby board is 80 inches long x 57 inches wide. Folding size: 57 x 15 inches. The wooden board is 1/3 inch . Attention: Wooden boards are not suitable to be placed under the entire mattress. It means placed in the middle, a few inches on each side 1