Convertible couch beds are great if you are having a couple over to stay and have the space to fold out into, but these double-decker solutions is a great alternative for smaller apartments or multiple-but-single overnight guests. Here are three designs from different companies that show off the potential of this strategy (and give you a few color, size and style options to choose from, too).

First, the Coupe deploys as fast as a regular transforming sofa, but expands vertically rather than horizontally to create a pair of beds stacked on top of one another. Based out of Greece, Proteas is a 50-year-old furniture company specializing in high-end designs. The Coupe comes in blue, red, green, brown or beige.

An alternative option that transforms slightly less quickly but unfolds along similar lines (and may be more robust due to its use of side supports) is the DOC.

Designed by BonBon, a UK company, it likewise lifts up to reveal a ladder and second-level sleeping area for guests, starting as a sofa. The DOC comes in in red, purple or orange.

Finally, from Resource Furniture, “the Palazzo bunk bed system, an innovative design that transforms from a sofa to a bunk bed, provides multiple functions while maximizing space. The beds are available with low or high armrests and come equipped with wood-slatted bed springs and removable mattresses. The bunk bed system includes exceptional safety features, including a locking mechanism and a complete barrier around the top bunk.”

The latest in a long line of city-centric upcycling projects, this modular couch turns the ultimate in untouchable urban infrastructure into a chic industrial work of furniture.

Carlo Sampietro created the Cloche Sofa after seeing a section of sewage pipe abandoned by a construction site, its spot being fit for replacement with a new set of tubes.

He then fitted the ends with stabilizing structural circles and plasma-cut sections for seats, welding them back into place, hinging them and creating two locked positions (open and closed). Various configurations can be achieved by opening and closing sections to create a pair of chairs, a love seat or a full sofa.

This is far from the first time that Sampietro has reworked urban elements into new forms – his Cloche Chairs turned safety barrels from “symbols of caution into objects of comfort.”

Some of his pieces draw on the visual language of familiar street objects, but interpret them in new ways, like this police barrier table constructed from walnut, steel, resin and using LEDs (which light up through its lettering below).

More about the sofa from the artist: “It represents landscape evolution that dismantles established structural standards and elements of construction materials, and repurposes a found material into sophisticated design, reshaping a common object into a meaningful amalgam. This piece harnesses objects that outlived their original uses, were discarded, reclaimed and renovated. The evolution of this landscape design could be achieved by taking in consideration other material such as concrete, stainless steel, wood or marble, all cylindrical forms present in existing construction materials or natural environment. The tube shape is accented by LED side panels and the conic footing. This renders the object’s hybrid functionality almost invisible, unnoticeable at the first glance.”