-Ultra Durable, "Kid Tough" Solid Pine Construction--Beautiful 3-stage Protected Pine Lacquer Finish--Bunk Bed Fits Twin Mattress on Both Top & Bottom--Bunk Bed Dimensions: 78"L x 43"W x 62"H--Bunk Separates In To 2 Separate Standalone Beds--Variety of Matching Pieces Are Shown Below-The "Constellations" Collection