I just finished similar quest, although I had many criteria, not just comfort when closed.

You might find the link below helpful.

Here is a link that might be useful: sleeper ratings

Why thank you very much, mtnrdredux! And these don't look half as clunky and heavy and old and dull as the sofas I have been looking at. Did you purchase one yet?

Our Stickley queen sofa bed has worked out well for us.

Good for sitting, good for sleeping.

I have my parents Lawson sofa reupholestered in the fall and bought an air mattress that fits right onto the desk of a sofa. Must be a queen size fit. My sister and her daughter have both slept on it and it got great reviews. Cost $269-shipped. Really wanted to use the sofa and also have limited company.

A few internal troubles removed some of the newer posts - but long story short, here is the sofa/bed that we finally decided upon for our Florida oceanfront condo. Its a Braxton Culler and very comfy for sleeping and sitting. When we come back to Florida in November, we'll be bringing some furniture from our NJ home and maybe then (maybe) we'll be all decorated! We're a very slow work in progress in this condo.