Before investing in a sofa, you need to investigate the frame, cushions, springs and other construction elements.

(As interior designer Keita Turner put it, “The sign of a quality sleeper is that you ... also the maker of one of our favorite sofas, is a good example of Turner’s criteria of a pullout ...

“While warmer weather won't arrive for another month or two, the winter typically brings good patio furniture deals as retailers try to drum up interest while demand is low,” she says.