DIY king size bed made from a few 2x4s cut to fit the space between shelves, 3 ikea expedition shelves, metal brackets to hold it all together.... Voila! Even has a nice little bench at the end for sitting on while putting on shoes etc.... We love it!
Here's another King-size loft bed. Looks like they use this room as an everything room, for a studio apt. perhaps. I see bed, desk (under bed), and sofa. This could also be just the bedroom if you don't have room for an office elsewhere chez vous.
Au Natural Cotton-filled 8-inch Loft King-size Futon Mattress by EpicFurnishings
@Overstock.com - Au Natural Cotton-filled 8-inch King-size Futon Mattress - This supportive king-size futon mattress from Au Natural is generously filled with 100-percent cotton, which ensures your comfort and provides very firm body support. http://www.overstock.com/Home-Garden/Au-Natural-Cotton-filled-8-inch-King-size-Futon-Mattress/6084702/product.html?CID=214117 $229.99