One of the best options for optimizing small spaces is a bunk bed. We love this modern piece from Lilly & Lollly.
The rounded edges on the Scoop bed give it a sleek, modern look, but they also make for a comfortable and safe sleeping area. One of the unique features of this bunk is the cut outs up top; for children sleeping up there, they have the safety of a side rail but the flexibility to see what's going on down below.
Made to order in Australia, the Scoop bed doesn't come cheap. But their ordering system does allow you to customize your bed to your liking.
The Scoop is available in many different stains at Lilly & Lolly.