"In the bed there is a mattress, a blanket, and the dog."

Translation: En la lito estas matraco, litkovrilo kaj la hundo.

[seveer]

This translation makes no sense to me. When would an English speaker say his mattress is in his bed in the same manner as his dog is? Or that his mattress is in his bed at all? Either this is not quite right or something is being lost in translation that I don't comprehend.