We need a sofa bed - preferably a corner sofa - but in my experience I've only ever slept on one comfy sofa bed, and as it was abroad I cannot for love nor money find the same one (and it wouldn't work anyway - I had to move it away from the wall to get it "out").
AIBU to ask you for your recommendations? It might have to be used for an extended period of time, so clearly would be helpful if it was comfortable as a bed and as a sofa, and also practical / easy to switch from one to the other. Bedding kept within the sofa itself would also be a bonus...