The foldable bed frame, which can hold up to 350 pounds (making it the sturdiest on our list), has a hammock-style suspension. The bed also comes with a 10-year warranty.

ARTEMIST Portable Folding Foldable Sleeping Bed: Durable steel frame with foam mattress: Twin bed size: Collapsible design for easy storage and transport: Supports up to 300 lbs: ...

Unlike the sofa beds of yesteryear, there are no metal bed frames inside the Koala Sofa Bed. Instead, the cushions fold out and lie on the floor, so you can freely stretch out.