This heavy duty twin over futon bunk bed referred to as the C-Bunk because of the C shape side rails is available in black or white.  Choose from a standard twin mattress for the top.  The bottom bunk sits like a couch but converts to a full size sleeping area.  Futon mattresses are available in a variety of comfort levels.  We also carry a wood/metal futon bunk that separates making a twin bed and a futon.