Cedar top bunk. I built this myself so very sturdy. Top bunk area is oversized for the mattress. Kids had lots of stuffed animals so it was built for those to fit around the mattress. Also mattress IS included. Will have to be disassembled to get out of the room. We had a full bed underneath or you could also put a queen perpendicular to bunk. Two enclosed sides are lightly padded. Back has access to an outlet. Want it gone. Make an offer.