We use ours all the time. It has never "folded up." Could you post a photograph of the sofa open with the bed mattress deflated and and another inflated?
Are the "legs" down?
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Lou & Freya the wonder dog
2008 GMC Sierra 3000HD Allison Duramax
2019 Flagstaff 8529FL
Location: Where the Bluegrass kisses the Mountains
Posts: 31
We had the same problem with our Silverback and there was a problem with the rail on the side of the bed locking in place. Our son is a service manager for a RV dealer and he fixed it in about three minutes. All it cost us was a batch of no bake cookies.