basement layout help
Bedroom next to the Bath, or Bath, then Storage, then Bedroom on the side that the Sliding door is on. You could run a hall between the are for the bath & storage, and the Bedroom. The area for the Furnace & Water heater will need Fresh Air for it, unless both are electric, but still would have to have some type of fresh air for recirculation. As for the duct & Cold Air return, put those in the picture as a different color. And where is your CATV/Telco & Main Panel located in this space, along with Water shut off. Those all can factor in how the space is laid out.
Since you have a window where I would put the Bedroom, is the window large enough to be an Egress exit, without having to exit out of the room to get to the sliding door? Take a few pictures of the space/basement, since they would speak more than a drawing.