Very good mattress for young kids.  Children are light weight, this mattress has actual give (or snuggle, cushioning factor) for their little bodies.  This can fit under most regular twin beds for a sometimes guest bed, or can be folded up as a two kid couch in the room.  The cover is a sort of mesh (I read picture denim) so I would cover it if you wanted to use it as a small sofa for kids.  We used it for a top bunk and it is easier to make than a heavy traditional mattress.