Recommendations for a foldaway guest bed

[BigSkies2022]

Can anyone recommend a good foldaway guest bed? I don't mean the sort that goes up into a wall, the kind that is on a metal frame and that you stash in the garage/cellar after use. I don't mind spending on a decent one, since I think it will get used. I am looking for one with a decent, non-lumpy/ hard mattress and a genuinely easy mechanism.
many thanks!

I've slept on a jay-be folding bed from Argos very comfortably. I'd go with one with a headboard just to prevent pillows falling off. They have a sale on at the moment.

Thanks, Jay-Be seems to come up on a lott of Google searches, will investigate.