Thin shower in back area, if pushed to one side possible to run a thinner/longer loft bed along other side. below loft bed bed could put a criss cross desk facing towards rear. snowboard holder under loft.
Detail of the sleeping area. To clarify in this shot the main,fixed double bed is in lounging set up. When sleeping you have your head at this end and feet go under the back bunk. Storage under the steps.