The metal daybed frame can be used as a sofa or a nap bed and is widely applicable to living rooms, guest rooms, and kid's rooms. It combines a twin-size slatted bed frame with 3-sided guardrails, making it comfortable whether you are lying, couching, or leaning. What's more, the sofa bed is well-constructed with rustproof carbon steel and is equipped with 6 legs for a stable structure, both of which ensure a considerable load capacity of up to 660 lbs. By the way, the legs are all fitted with anti-scratch floor protectors, which help improve stability and prevent scratches.