Two things can be true at once: Sleeper sofas are a feat of engineering, and they can be the bane of your existence. It’s a marvel to fit a frame and mattress for a bulky piece of furniture ...

See, a lot of modular options don’t actually have pull-out beds. Some do! And we’ll get to that, but I have to give the disclaimer that a lot of them do not; yet—trust me—they double as ...