This cute little MÖRRUM Loft bed frame is a blend of contemporary and fairy tales. The bed has ample space under the bed for storage, a desk or a seating area. the space under the bed is large enough to hold a mattress base. The ladder can mount on the left or right side of the bed. The mattress must be max. 8 1/4″ thick in total in order not to exceed the safety marking on/by the upper part of the ladder. Things that should be aware of is do not screw hooks, handles etc. onto the bed or hang things on it in which children can get caught on when playing. 

Via : http://www.ikea.com/us/en/catalog/products/