I need a full-size mattress and have been looking at the Serta Juniper Perfect Sleeper Innerspring (9.5 lb. layer of 80% cotton/20% poly blend, 1 3/4" eggcrate foam, 462 coil Perfect Sleeper innerspring unit), but would be grateful if people chimed in with recommendations for comfy futon mattresses they've owned and loved.  

Thanks!

Nobody has purchased futons here? Strange.....  Kinda curious myself.

I have worked in the mattress industry for over 38 years...

 

Gunman

I have a futon that is cotton-batting filled and actually it's quite comfortable at times.

I've never slept on it for more than one night at a time but sometimes when I wake up with a sore back, I go in and lay down on the futon and it is somehow a little better for my back at those times. I doubt it would be good for full time sleeping but it's good as a couch and using it to pull out for friends to sleep on for a night or two.

Following much deliberation, I decided to go with the Otis Bed Luxury futon mattress.  It's an excellent combination of softness and support (for normal people), like sinking into a firm marshmallow.  It's still a tad too firm for me, as anything that doesn't feel cloud-like causes pain.  If I find a memory foam topper for my bed that feels cloud-like, I'll probably just get another one for the futon.  

Two thumbs up for the Otis Luxury!

We have an Otis futon mattress in our guest room, and although I have never slept on it we get lots of compliments from those who have slept there.  I think it's mostly PU foam but it has held up well with limited use. If too firm, I'd try putting 1-2 inches of memory foam on top.   You might check out Overstock.com for Sensus 5 lbs or Memcool 4 lb in various thicknesses.   I've been happy with  my 1 inch Sensus (though it is cut a bit undersize).